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Make a parallelogram ABCD in which ac and bd are diagonals when ac is a diagonal in triangle ABC and triangle abd pair of alternate angle and common and ab =CD by asa rule triangles get congruent it is tooo easy try if you don't understand in ncert book class 9 open pg no. 139 u understand

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Isha Chand 5 years, 10 months ago

Make parallelogram and its only one daigonal then congurent the triangle so obtain

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Dhammaratna Kamble 5 years, 10 months ago

the answer is that see in book

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Dhammaratna Kamble 5 years, 10 months ago

hlo

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ANSWER

The mid value of a class interval is 42. If the class size is 10, find the upper and lower limit of the class.

Posted by Shimla Chawla 5 years, 10 months ago

CBSE > Class 09 > Mathematics

3 answers

Dj Jd 5 years, 10 months ago

U. P - L. L 37 - 47

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Aarti Anand 5 years, 10 months ago

37 - 47

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Sri Sarath 5 years, 10 months ago

Upper limit -lower limit

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If x value=0 and y =k if the solution of equation5x-3y=3 find the value of k

Posted by Sachin Mathur 5 years, 10 months ago

CBSE > Class 09 > Mathematics

4 answers

Dj Jd 5 years, 10 months ago

Yes -1 is the right answer

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Himani Kashyap 5 years, 10 months ago

-1if i am right that is the question no. 1 of last year sample paper ?????

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Aarti Anand 5 years, 10 months ago

-1

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Pinki Saini 5 years, 10 months ago

1/-1

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What is an arc?

Posted by Jyoti Raghuwanshi 5 years, 10 months ago

CBSE > Class 09 > Mathematics

2 answers

Jyoti Raghuwanshi 5 years, 10 months ago

Thanks

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Himani Kashyap 5 years, 10 months ago

A piece of circle Between two points is called arc

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Explain the all theorem of circles.

Posted by Arya Jadav 5 years, 10 months ago

CBSE > Class 09 > Mathematics

2 answers

Himani Kashyap 5 years, 10 months ago

Open the google and search

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Jyotie Kumari 5 years, 10 months ago

Factotise 64 a3_ 27b3_144a2+108 ab2

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10.4 in 6 sum

Posted by Tamilarasan Tamilarasan 5 years, 10 months ago

CBSE > Class 09 > Mathematics

1 answers

Himani Kashyap 5 years, 10 months ago

At pg no. 174 theorem 10.4 available

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Find mean of first ten prime numbers

Posted by Simran Bajwa Bajwa 5 years, 10 months ago

CBSE > Class 09 > Mathematics

4 answers

Dj Jd 5 years, 10 months ago

12.9

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Himani Kashyap 5 years, 10 months ago

Mean =sum of all observations /upon m total no. Of observation

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Himani Kashyap 5 years, 10 months ago

2 3,5,7,11,13,17,19,23 ,29 these are first 10 prime no.

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Bro . 5 years, 10 months ago

=> First ten prime no. = 2,3,5,7,11,13,17,19,23 and 29. => Mean = (2+3+5+7+11+13+17+19+23+29)/10 => Mean= 129/10 => Mean= 12.9

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In the figure If the bisectors of angles ∠B and ∠C of a triangle ABC meet at a point O, then prove that ∠BOC = 90°+ 1 2 ∠A.

Posted by Devansh Dewani 5 years, 10 months ago

CBSE > Class 09 > Mathematics

1 answers

Bro . 5 years, 10 months ago

=> angle A + angle B + angle C = 180°. => 1/2 ( angle A + angle B + angle C ) = 90°. => 1/2 angle B + 1/2 angle C = 90°- 1/2 angle A. => angle BOC + 1/2(angle B + angle C)= 180°. => angle BOC + 90° -1/2 angle A =180° => angle BOC = 180°- 90° + 1/2 angle A => angle BOC = 90° +1/2 angle A

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Does every equation in 2 variable have unique solution?

Posted by Niharika Gureja 5 years, 10 months ago

CBSE > Class 09 > Mathematics