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The angle of a triangle are (x+21) ,x and 2x - 54 find the value of x

Posted by Nikita Chaudhary 4 years, 10 months ago

CBSE > Class 09 > Mathematics

2 answers

Kumudha Krishnan 4 years, 10 months ago

The value of x is 53.25

Vansh Kukreja 4 years, 10 months ago

(x +21)+x+(2x-54)=180 ....... by Angle sum property

ANSWER

Construct a angle ABC in which BC = 7 cm ,D= 75° and AB + AC =13 cm

Posted by Akku Verma 4 years, 10 months ago

CBSE > Class 09 > Mathematics

0 answers

ANSWER

2+3+3-44/77

Posted by Suryan Singh 4 years, 10 months ago

CBSE > Class 09 > Mathematics

0 answers

ANSWER

Area of csa of cylinder

Posted by Rimpi Bhuria 4 years, 10 months ago

CBSE > Class 09 > Mathematics

2 answers

Nitin Singh 4 years, 10 months ago

2Πrh

Rimpi Bhuria 4 years, 10 months ago

2πrh

ANSWER

Radha made a picture of an aeroplane with coloured paper as shown in figure 12.15.find the total area of the paper used

Posted by Nidhi Oberoi 4 years, 10 months ago

CBSE > Class 09 > Mathematics

2 answers

Kumudha Krishnan 4 years, 10 months ago

Total area is 19.3 cm²

Amish Sinha 4 years, 10 months ago

Where is the figure ?

ANSWER

Find the value of (81)5/x=243

Posted by Jannat Kumari 4 years, 10 months ago

CBSE > Class 09 > Mathematics

3 answers

Student Inquisitive 4 years, 10 months ago

Answer is 4... Firstly equate the base...Then the exponents

Kumudha Krishnan 4 years, 10 months ago

X=5/3

Harini Indukuri 4 years, 10 months ago

81×5/x= 243 5/x=243/81 5/x=3 x=5/3

ANSWER

A dice is tossed 6 times. What is the probability of getting different numbers every times?

Posted by Roushan Kumar 4 years, 10 months ago

CBSE > Class 09 > Mathematics

2 answers

Jiya Baraiya 4 years, 10 months ago

1is the probability

Deepak Daksh 4 years, 10 months ago

1 will be the probability

ANSWER

AB is a line segment and M is its mid point. Semicircles are drawn with AM,BM and AB as diameters on the same side of line AB. A circle C (O,r)is drawn , so that it touches all the three semi- circles .Prove that r=AB/6

Posted by Vansh Kukreja 4 years, 10 months ago

CBSE > Class 09 > Mathematics

0 answers

ANSWER

the internal and external diameters of a hollow hemispherical vessel are 24 cm and 25 respectively if the cost of painting 1 cm square of the surface area is rs 0.05 and the total cost of painting the best all over

Posted by E Verma 4 years, 10 months ago

CBSE > Class 09 > Mathematics

0 answers

ANSWER

1+1=3.How?

Posted by Ritessh Jeevan D 4 years, 10 months ago

CBSE > Class 09 > Mathematics

3 answers

Tanya Narang 4 years, 10 months ago

2=3 20=30 2(10)=3(10) 10 is common 2=3 1+1=3

Vishwavara Vishwakarma 4 years, 10 months ago

What a funny question

Hitkar Miglani 4 years, 10 months ago

By mistake

ANSWER

what is the area of four walls

Posted by Diya Shah 4 years, 10 months ago

CBSE > Class 09 > Mathematics

5 answers

Jiya Baraiya 4 years, 10 months ago

2(l+b)h

Gayatri Singla 4 years, 10 months ago

,2(l+b)h

Rimpi Bhuria 4 years, 10 months ago

2(l+b)h

Vansh Kukreja 4 years, 10 months ago

area of four walls = l.s.a.of a cuboid =2(lh+bh)

Diya Shah 4 years, 10 months ago

area of four walls= curved surface area of cuboid

ANSWER

Support material chapter 1 part A,B,C,D

Posted by Akash Chaurasia 4 years, 10 months ago

CBSE > Class 09 > Mathematics

0 answers

ANSWER

blue print of mathematics class 9 cbsc

Posted by Yash Kumar 4 years, 10 months ago

CBSE > Class 09 > Mathematics

2 answers

Prisha Gupta 4 years, 10 months ago

20 marks : 1word Q 5 mark: 4-6 question Remaining 2/3 mark

Ritessh Jeevan D 4 years, 10 months ago

******10 choose,5 fill ups,5 one word,6 2marks,8 3marks,6 4marks from my point of view

ANSWER

Value of (x+y)^-1 (x^-1 +y^-1) is: 1) 1 2) (x+y)^-2 3) x^-1 y^-1 4) (xy)^-1 (x+y)^-1

Posted by Divjot 9843 4 years, 10 months ago

CBSE > Class 09 > Mathematics

1 answers

#Joel Wilson 4 years, 10 months ago

3

ANSWER

A rectangular plot is given for constituting a house having a measurement of 40 meters long and 15 m in the front .according to the laws a minimum of 3mts wide space should be left in the front and back each .and 2mts wide space each other sides. Find the largest area where house can be.constructed.

Posted by Karthikeyan Mr 4 years, 10 months ago

CBSE > Class 09 > Mathematics

1 answers

Karthikeyan Mr 4 years, 10 months ago

I don't know the answer. Kindly send me the answer.

ANSWER

Solve theorem 9.2 ,9.3of class9th

Posted by Isha Jindal 4 years, 10 months ago

CBSE > Class 09 > Mathematics

0 answers

ANSWER

Prove that angle in the segment are equal

Posted by Shivam Sutar 4 years, 10 months ago

CBSE > Class 09 > Mathematics

0 answers

ANSWER

How to solve root 11 etc.

Posted by Sarthak Garg 4 years, 10 months ago

CBSE > Class 09 > Mathematics

4 answers

Vansh Kukreja 4 years, 10 months ago

3.2

Ritessh Jeevan D 4 years, 10 months ago

We can solve root 11 by our hand

Rajneesh Payal 4 years, 10 months ago

3.2

Abdul Rahman 4 years, 10 months ago

3.2

ANSWER

If ABCD is a rectangle and p and F are midpoints of BC and CD respectively find the ratio of the area between triangle AEF and e EFC

Posted by Divjot 9843 4 years, 10 months ago

CBSE > Class 09 > Mathematics

0 answers

ANSWER

Perimeter of quadrilateral

Posted by Aditya Aditya 4 years, 10 months ago

CBSE > Class 09 > Mathematics

2 answers

Vansh Kukreja 4 years, 10 months ago

sum of all sides , 2(l+b)

Ganapathi Pallaniappan 4 years, 10 months ago

Sum of all angle is=360

ANSWER

13.1

Posted by Rahul Yadav 4 years, 10 months ago

CBSE > Class 09 > Mathematics

1 answers

Nisha Setia 4 years, 10 months ago

Choose mathematics subject and then click on 13 chapter and then choose exercise (13.1) Mathematics > 13 > 13.1

ANSWER

8+8=17

Posted by Harshit Jain 4 years, 10 months ago

CBSE > Class 09 > Mathematics

5 answers

Anuj Jain 4 years, 10 months ago

Aur harshit bhai

Anuj Jain 4 years, 10 months ago

Galati se ho gaye

Aanchal Singh 4 years, 10 months ago

By mistake

Tanya Narang 4 years, 10 months ago

16=17 16(10)=17(10) 10 is common 16=17 8+8=17

Avni Jain 4 years, 10 months ago

Galati se ho gaye

ANSWER

If perimeter of rhombus is 20 cm and one of its diagonal is 8cm then find area of rhombus

Posted by Amit Singh 4 years, 10 months ago

CBSE > Class 09 > Mathematics

1 answers

Yogita Ingle 4 years, 10 months ago

Given, Perimeter of a rhombus = 20 cm
Perimeter of a rhombus = 4×side
Hence, side = 20/4 = 5 cm.
Now, we know that the diagonals of a rhombus bisect each other at right angles (90 degree).
Hence 'a right angled triangle can be visualised with 'side' as the hypotenuse'.

diagonal length = 8 cm
Half the length (since diagonal bisects each other) = 8/2 = 4 cm
(d/2)² + (d1/2)² = 5²
4² + (d1/2)² = 5²
(d1/2)² = 9
d1/2 = 3
d1 = 3×2 = 6 cm
Hence other diagonal = 6 cm.

Area = 1/2 × d1×d = 1/2 × 8 × 6 = 24 cm²

ANSWER

Insert 3 rational number between 1/3&3/5

Posted by Tilottama Mishra 4 years, 10 months ago

CBSE > Class 09 > Mathematics

2 answers

Asifa Naaz 4 years, 10 months ago

Your answer is irrational

Deepak Daksh 4 years, 10 months ago

0.3401001000100001.... 0.4501001000100001.... 0.5601001000100001....

ANSWER

What is binomial and monomial

Posted by Arjun Singh Sharma 4 years, 10 months ago

CBSE > Class 09 > Mathematics

4 answers

Aanchal Singh 4 years, 10 months ago

Binomial refers to 2 terms Monomial refers to1term....????

Pranshu Learn 4 years, 10 months ago

Polynomial has one term called monomial and have two terms are called binomial

Akshat Shukla 4 years, 10 months ago

A binomial is a polynomial consisting of two terms Eg. x+3. Similarly a monomial is also a polynomial having one term only. eg. 2, 2x etc

Shourya Utkarsh 4 years, 10 months ago

An algebric expression consisting of only one term is called 'monomial'.Ex- 4x² An algebric exoression consisting of two terms is called 'binomial'.Ex- 8y+12y²

ANSWER

A plastic box 1.5m long 1.25m wide and 65cm deep is to be made . It is opened at the top . Ignoring the thikness of the plastic sheet, determine . Find the area of sheet required for making the box.

Posted by Rakesh Singh 4 years, 10 months ago

CBSE > Class 09 > Mathematics

1 answers

Sejal K 4 years, 10 months ago

2(125+65)+150 380+150 530cm ?

ANSWER

If xyz = 1 , then simplify (1 + x + y^-1)^-1 × (1 + y + z^-1)^-1 × (1 + z + x^-1)^-1

Posted by Monika Chandni 4 years, 10 months ago

CBSE > Class 09 > Mathematics

0 answers

ANSWER

Find the volume of a sphere whose radius is 7 cm

Posted by Eshan Chiplunkar 4 years, 10 months ago

CBSE > Class 09 > Mathematics

5 answers

Rohit Patel 4 years, 10 months ago

1437.33

Aayush Yadav 4 years, 10 months ago

C

Saksham Khanna 4 years, 10 months ago

Area of sphere = 4/3 π R^3 = 4/3 * 22/7 * 343 = 1437.34 cm^3

Suraj Prajapati 4 years, 10 months ago

Volume of sphere = 4/3 ✖ 22/7 r^3 4/3 ✖ 22/7✖7✖7✖7 Solve for the a answer

Kushagra Gupta 4 years, 10 months ago

H

ANSWER

Prove that perpendicular from the center of a circle to a chord bisects the chord

Posted by Sarthak Garg 4 years, 10 months ago

CBSE > Class 09 > Mathematics

0 answers

ANSWER

If x=4-√15 then the value of x+1divided by x

Posted by Tuba Sulaiman 4 years, 10 months ago

CBSE > Class 09 > Mathematics

1 answers

Yash Saxena 4 years, 10 months ago

X=4-✓15 X+1=(4-✓15)+1 X+1=5-✓15 X/x+1=4-✓15/5-✓15

ANSWER

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