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Let B=x degree In rhombus opposite angles are equal thus angle A= angle C=60degree Angle B=angle D=x degree We know that some of quadrilateral is 360 degree. Hence, A+B +C +D=360 60+x+60+x=360 2x+120=360 2x=360-120 2x=240 x=120 degree Hence Angle A = Angle B=60degree Angle B=Angle D=x=120degree

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2x+3x-1

Posted by Abhishek Kumar 3 years, 9 months ago

CBSE > Class 09 > Mathematics

2 answers

Yogita Mina 3 years, 9 months ago

2x+3x-1 = 5x-1=0 = 5x=1 = x=1/5 =0.2

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Kripa Daga 3 years, 9 months ago

x=1/5

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Write True or False: (i) Line segment joining the centre to any point on the circle is a radius of the circle. (ii) A circle has only finite number of equal chords. (iii) If a circle is divided into three equal arcs each is a major arc. (iv) A chord of a circle, which is twice as long as its radius is a diameter of the circle. (v) Sector is the region between the chord and its corresponding arc. (vi) A circle is a plane figure. Ans. (i) True (ii) False (iii) False (iv) True (v) False (vi) True Sir please complete the question and give us the complete answer

Posted by Nitya Gupta 3 years, 9 months ago

CBSE > Class 09 > Mathematics

5 answers

Nitya Gupta 3 years, 8 months ago

The question is incomplete that's what I want . I also know answers .

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Saloni Harinkhede 3 years, 9 months ago

1.true 2.false 3.false 4.true 5.false 6 . True

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Shreya Sangappa Kalasagond 3 years, 9 months ago

I. True II. False III. False IV. True V. False VI. True

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Kripa Daga 3 years, 9 months ago

You have given answer yourselp

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Suzanne Smitha 3 years, 9 months ago

(i) Line segment joining the centre to any point on the circle is a radius of the circle.Answer: True; because the distance between centre and any point on circumference is called radius. (ii) A circle has only finite number of equal chords. Answer: False, because a circle can haev infinite number of equal chords. (iii) If a circle is divided into three equal arcs, each is a major arc. Answer: False, because a major arc is always bigger than a minor arc, and they cannot be equal. (iv) A chord of a circle, which is twice as long as its radius, is a diameter of the circle. Answer: True because diameter is the longest chord of a circle and is always twice the radius. (v) Sector is the region between the chord and its corresponding arc. Answer: False, the region between the chord and its corresponding arc is called segment. (vi) A circle is a plane figure. Answer: True

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represent 3+√2.6 on number line

Posted by Aanya Mahi 3 years, 9 months ago

CBSE > Class 09 > Mathematics

2 answers

Nitya Gupta 3 years, 9 months ago

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Suzanne Smitha 3 years, 9 months ago

We are required to the expression 3 + root 2.6 on the number line. Since, we know, 3+ √2.6 = 3 + √2.6 3+ 1.61 4.61 So, it is required to represent the number 4.61 on the number line. As we know, The number 4.61 lies between the numbers 4.6 and 4.7.

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Define mathematics

Posted by Rajnish Singh 3 years, 9 months ago

CBSE > Class 09 > Mathematics

3 answers

Ravinder Butola 3 years, 9 months ago

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Abir Mishra 3 years, 9 months ago

the science or study of numbers, quantities or shapes

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Suzanne Smitha 3 years, 9 months ago

Mathematics is the science that deals with the logic of shape, quantity and arrangement. Math is all around us, in everything we do. It is the building block for everything in our daily lives, including mobile devices, architecture (ancient and modern), art, money, engineering, and even sports.

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What is the probability of getting non face cards or 2 in the deck of cards?

Posted by Ritika Gupta 3 years, 9 months ago

CBSE > Class 09 > Mathematics

1 answers

Aayushi Pandey 3 years, 9 months ago

1/52

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If the sum of the bases of trapezium is 12 cm and area is 14.1 cm² then its altitude will be

Posted by Ashish Singh Singh 3 years, 9 months ago

CBSE > Class 09 > Mathematics

2 answers

Ravinder Butola 3 years, 9 months ago

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Suzanne Smitha 3 years, 9 months ago

Let the altitude of the trapezium be h, Then, The sum of the sides of the trapezium=12 cm Now,The area of the trapezium =14.1 cm² sum of parallel side /2"height=14.1 cm² 12/2"h=14.1 cm² h=14.1cm²/6 h=2.35 cm So,the altitude is 2.35 cm

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?when 40 time tossed the coin and 24 being tail what possibilitiey to get result both head and tail?

Posted by Yogita Mina 3 years, 9 months ago

CBSE > Class 09 > Mathematics

5 answers

Mehak Kumari 3 years, 9 months ago

Coin tossed= 40 times, Showed tail= 24 times Probability of (getting tail)=40-24 =16/40 =2/5 Probability of (getting head)= 24/40 =12/20 =3/5

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Ritika Gupta 3 years, 9 months ago

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Suzanne Smitha 3 years, 9 months ago

Hence,the possibilitiey to get result both head and tail is =2/5 +3/5 =5/5 =1

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Suzanne Smitha 3 years, 9 months ago

Hence,possibility to get result both head and tail is=2/5 +3/5 =5/5 =1

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Suzanne Smitha 3 years, 9 months ago

Coin tossed = 40 times showed tail = 24 times Probability (getting head) =40-24/40 =16/40 =2/5 Probability (getting tail)=24/40 =12/20 =3/5

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Is √98/√2 a rational number?

Posted by Saanvi Saanvi 3 years, 9 months ago

CBSE > Class 09 > Mathematics

2 answers

Adarsh Patil 3 years, 8 months ago

Yes it is an rational number by multiplying root 2 by root 2 we get the answer 7

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Yogita Mina 3 years, 9 months ago

Yes it is a rational number

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6÷2(2+1)

Posted by Kripa Daga 3 years, 9 months ago

CBSE > Class 09 > Mathematics

5 answers

Yogita Mina 3 years, 9 months ago

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Anuj Pandey 3 years, 9 months ago

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Tamanna Sarfraz 3 years, 9 months ago

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Siddhi Sarolkar 3 years, 9 months ago

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Amreen Khilji 3 years, 9 months ago

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Case study based questions

Posted by Shivakant Yadav 3 years, 9 months ago

CBSE > Class 09 > Mathematics

5 answers

Suzanne Smitha 3 years, 9 months ago

https://youtube.com/playlist?list=PL2uPMjJCHErQtH4GQiaA-y70Am6tkCFTd Please click on this link and learn the case based Questions in YouTube online . Don't worry for the answers which they've given as to scold you

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Neha Kumari 3 years, 9 months ago

Math

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Shridhar Kumbar 3 years, 9 months ago

Fool

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Shridhar Kumbar 3 years, 9 months ago

You fool you don't know answer

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Shridhar Kumbar 3 years, 9 months ago

Study study study study

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A video on quadrilateral garden and calculation by using herons formula

Posted by Khushboo Chaudhary 3 years, 9 months ago

CBSE > Class 09 > Mathematics

1 answers

Chirag Panghal 3 years, 9 months ago

A+b+c _ 2

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What is a right angle triangle

Posted by Karan Bag 3 years, 9 months ago

CBSE > Class 09 > Mathematics

5 answers

Saanvi Saanvi 3 years, 9 months ago

Right angled triangle which have 90 degree angle

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Kripa Daga 3 years, 9 months ago

A triangle having one angle equal to 90° is right angle triangle.

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Amreen Khilji 3 years, 9 months ago

A triangle ? in which one angle is equal to 90°,is called ✔right angle triangle ?.

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Priti Kumari 3 years, 9 months ago

A triangle in which one of the angle is 90 degree and less than 180degree

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धर्मेंद्र कुशवाह 3 years, 9 months ago

A triangle in which one angle is equal to 90°, is called right angled triangle

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The adjacent angles of a parallelogram are (5x-3) and (5x-67). Find all the angles of the parallelogram

Posted by Khushboo Singh 3 years, 9 months ago

CBSE > Class 09 > Mathematics

2 answers

Deepak Sethi 3 years, 9 months ago

that all the angles of parallelogram are the sum of 360 degree and we also know that the sum of adjacent angles is 180 degree and we also know that the the the opposite angles are equal so if we add all the angles of parallelogram sin 5x - 3 + 5 x -67 both into both are multiplied by 2 then if in Lhs side 2 into 5x- 3 + 5x- 67 is equals to 360 degreeput all the angles with 360 degree so we found the angles we found that x is equal to 25 degree now 5 x minus 3 is equals to 5 into 25 - 3 that is 125 - 3 is equal to 1 22 degree and we know that opposite sides are equal so angle b and angle c is 12122 degree from a war 5 x minus 6 7 is equals to 5 into 25 - 67 that is

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Kripa Daga 3 years, 9 months ago

122°,58°,122°,58°

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In given fig o is centre of circle.om is perpendicular BC,ol perpendicular ab ,on perpendicular AC,Om=on=ok.is triangle ABC equilateral triangle.give reason.chapter circle grade 9

Posted by Shreeji Vakil 3 years, 9 months ago

CBSE > Class 09 > Mathematics

1 answers

Tanishq Pandya 3 years, 9 months ago

Given :- O is the centre of a circle. OM is perpendicular to BC. So, OM bisects BC (the perpendicular from the centre of a circle to a chord bisects the chord) ON is perpendicular to AC. So, ON bisects AC (same reason as above) OL is perpendicular to AB. So, OL bisects AB (same reason as above) Also, OL=OM=ON ... (i) To prove :- ∆ABC is an equilateral triangle. Proof :- From equation (i), AB=BC=CA (Chords equidistant from the centre of a circle are equal) Therefore, ∆ABC is an equilateral triangle. _________________________ Hope it helps you!

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Prashant shoe shops placing an order for making cardboard boxes for packing issues to sizes of boxes were acquired the bigger of dimensions 22m 215 cm into 5 cm and the smaller of dimensions 15 cm and 10cm and to 5 cm for all the overlap two percent of the total surface area is required extra if the course of the cardboard is 5 piece for thousand CM square find the cost of cardboard required for supplying 200 box of each kind

Posted by Kiratpreet Kaur 3 years, 9 months ago

CBSE > Class 09 > Mathematics