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Prove that angles in the same segment of a circle are equal.

Posted by Shruti Priya 4 years, 10 months ago

1 answers

Utsav Kumar 4 years, 9 months ago

As we know that ang at centre is double the ang formed at another point by same arc so ang formed by same arc is equal i.e ang in same segment is equal

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24xpower3 -65xpower2 +21x

Posted by Madhav Kumar 4 years, 10 months ago

CBSE > Class 09 > Mathematics

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how to prove RHS congruence rule?

Posted by Mita Shah 4 years, 10 months ago

CBSE > Class 09 > Mathematics

2 answers

Khushi Sharma 4 years, 9 months ago

When one side and 90degree Angle anddd hypotenuse of 2 triangles are equal.then we can say that there will RHS congruency rule

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Yogita Ingle 4 years, 10 months ago

RHS (Right angle- Hypotenuse-Side)

If the hypotenuse and a side of a right- angled triangle is equivalent to the hypotenuse and a side of the second right- angled triangle, the right triangles are said to be congruent by RHS rule.

In above figure, hypotenuse XZ = RT and side YZ=ST, hence triangle XYZ ≅ triangle RST.

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2+8-3(9+5-3*6)/2

Posted by Mahima Agrawal 4 years, 10 months ago

CBSE > Class 09 > Mathematics

2 answers

Rajneesh Payal 4 years, 9 months ago

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Yogita Ingle 4 years, 10 months ago

2+8-3(9+5-3*6)/2

= 2+8-3(9+5-18)/2

= 2+8-3(14-18)/2

= 2+8-3(-4)/2

= 2+8+12/2

= 2 + 8 +6

= 10 + 6

= 16

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The sum of the radius of the base and height of a solid cylinder is 37m if the total surface area of the solid cylinder is 1628cm square find the volume of the cylinder

Posted by Vansh Bharadawaj 4 years, 10 months ago

CBSE > Class 09 > Mathematics

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Find three different solution 3m-8n=27

Posted by Shashikala Singh 4 years, 10 months ago

CBSE > Class 09 > Mathematics

1 answers

Yogita Ingle 4 years, 10 months ago

3m - 8n = 27
3m = 27 + 8n
m = (27 + 8n)/3

Taking different values of n, we can calculate the corresponding values of m
For example, when n = 0, m=9. when n=3, m=17 and when n=6, m=25

There can be several sets of other solutions

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In the given figure o is centre of the circle find x

Posted by Pawan Kumar 4 years, 10 months ago

CBSE > Class 09 > Mathematics

1 answers

Shahnawaz Ahmad 4 years, 10 months ago

Pura question to likho

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10.8 theorem

Posted by Sahil Singh 4 years, 10 months ago

CBSE > Class 09 > Mathematics

1 answers

Vansh Bharadawaj 4 years, 10 months ago

Angle subtentet in the center is double then others angle of the circle

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Theareaoftheparallegramabcdinthefigure12cm10cm9cm15cm

Posted by Sidhartha Behera 4 years, 10 months ago

CBSE > Class 09 > Mathematics

0 answers

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Solution of theorem 10.6

Posted by Laxman I 4 years, 10 months ago

CBSE > Class 09 > Mathematics

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If x²+3mx+6 then the value of m is

Posted by Harjit Singh 4 years, 10 months ago

CBSE > Class 09 > Mathematics

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All prime numbers between 50and80

Posted by Sabhajit Pal 4 years, 10 months ago

CBSE > Class 09 > Mathematics

2 answers

Yash Lohchab 4 years, 10 months ago

53,59,61,67,71,73 and 79 are the prime numbers between 50 and 80

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Yogita Ingle 4 years, 10 months ago

The prime numbers between 50 and 80 are 53, 59, 61, 67, 71, 73 and 79.

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1. ABCD is a rectangle in which diagonal AC bisects A as well as C. Show that: (i) ABCD is a square. (ii) Diagonal BD bisects both B as well as D.

Posted by Niharika Niki 4 years, 10 months ago

CBSE > Class 09 > Mathematics

2 answers

Anureet Kaur 4 years, 10 months ago

II) In ? ABD and CBD. AB =BC, AD =CD (ABCD is square) BD=BD. (common) therefore By SSS criterion ? ABD is congruent to ? CBD. Therefore angle 5=6. And angle 7=8. By cpct. Hence proved

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Anureet Kaur 4 years, 10 months ago

Given -ABCD is a rectangle, AC bisects A and C Proof -i) In ? ABC and ? ADC 1=2 (given) 3=4 (given) AC=AC (common) By ASA criterion. ? ABC congruent to ? ADC. Therefore AB =AD...... (1) (cpct) but ABCD is rectangle therefore AB=DC.....(2) BC =AD.......(3) From (1),(2),(3) AB =BC=CD=DA. Therefore ABCD is a square

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Exercise 8.2 question 8

Posted by Santosh Rj Maurya 4 years, 10 months ago

CBSE > Class 09 > Mathematics

1 answers

Santosh Rj Maurya 4 years, 10 months ago

Lesson 2

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show that bisector of angles of llgm form a rectangle

Posted by Lakhwinder Singh Dhalli 4 years, 10 months ago

CBSE > Class 09 > Mathematics

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The surface area of sphere of radius 5cm is 5 times the curved surface area of cone of radius 4cm find the height and volume of cone

Posted by Ankesh Mishra 4 years, 10 months ago

CBSE > Class 09 > Mathematics

2 answers

Yash Lohchab 4 years, 10 months ago

Height=3cmm Volume=352/7cm^3

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Yogita Ingle 4 years, 10 months ago

Surface area of the sphere=(4π×5×5) cm²
= (100π) cm².

Curved surface area of the cone=(π×4×l) cm²
=(4πl) cm²

∴ 100π=5×(4πl) ⇒ l=5 cm.
Now, l² = h² + r²
5²= h² + 4²
h²= 9
h= 3 cm.

Volume of cone = 1/3 πr²h

= 1/3 × 22/7 × (4)²× 3

= 22/7 × 16

= 50.29cm²

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What is the value of 0/2is.and why

Posted by Pallavi Agrawal 4 years, 10 months ago

CBSE > Class 09 > Mathematics

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Locate √5on number line

Posted by Saksham Sharma 4 years, 10 months ago

CBSE > Class 09 > Mathematics

1 answers

Namrata Jindal 4 years, 10 months ago

Join 0 and 2 on the number line. Draw a perpendicular of length 1 on 2. Join 0 and the endpoint of the perpendicular. Place the point of the compass on 0 and the other on the endpoint. The place where the curve made by the compass meets the number line represents √5.

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In the given figure, AB and AC are two equal chords of a circle with Centre. Such that angle BAO =angel CAO. Prove that AB=AC

Posted by Om Prakash 4 years, 10 months ago

CBSE > Class 09 > Mathematics

1 answers

Satyam Singh 4 years, 10 months ago

Where is the figure??

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1st chapter important question

Posted by Sabir Sharim 4 years, 10 months ago

CBSE > Class 09 > Mathematics

1 answers

Sabir Sharim 4 years, 10 months ago

Number system chapter important question

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If two supplement ery angle differ by23 and then find angle

Posted by Kanishk Vastav 4 years, 10 months ago

CBSE > Class 09 > Mathematics

0 answers

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Locate underroot 3on the number line

Posted by Ajay Kushwaha 4 years, 10 months ago

CBSE > Class 09 > Mathematics

0 answers

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The sum of either pair of opposite angles of a cyclic quadrilateral is 180

Posted by Manjeet Singh 4 years, 10 months ago

CBSE > Class 09 > Mathematics

1 answers

Yogita Ingle 4 years, 10 months ago

Given : Let ABCD is cyclic quadrilateral.
To prove : ∠A + ∠C = 180° and ∠B + ∠D = 180°.
Construction : join OB and OD.

Proof : ∠BOD = 2 ∠BAD
     ∠BAD = 1/2∠ BOD
Similarly ∠BCD = 1/2 ∠DOB
∠BAD + ∠BCD = 1/2∠BOD + 1/2 ∠DOB
                   =1/2(∠ BOD + ∠DOB)
                   = (1/2)X360° = 180°
Similarly ∠B + ∠D = 180°