Question

In a triangle ABC, angle B = 90° , then AC²=?

Answer 1

AC² = AB² + BC ².............

Answer 2

Answer:

given that ABC is a right triangle and <b = 90

so we know that the side opposite to angle B, AC will be the hypotenuse.

Hence the answer is by Pythagoras theorem ;

$AC^{2} = AB^{2} + BC^{2}$