This question was asked in Ex 8.1, 3

In class 10th mathematics exercise number 8.1 third question how we know that we have to make 90 degree at B point

Yash Vadadoriya

Sept. 10, 2017, 9 p.m.

Answers!

Davneet Singh

Sept. 11, 2017, 2:26 p.m.

Hello Yash

Since sin A is given, our triangle ABC is a right angled triangle. Because sin is found in a right angle triangle

We can put B or C 90 degree. In the question, we put B as 90 degree

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