Question

please help me to solve this question

Answer 1

Hey friend,
Here is the answer you were looking for:

Given,
AB = AC

So, opposite angles will also be equal.

angle B = angle C

angle A = 90° (given)

Now,
We know that sum of all the angles of a triangle is 180°

We can write it as

angle A + angle B + angle C = 180°

(we had find out that angle B and angle C are equal, so we can write )

90° + angle B + angle B = 180°

2 angle B = 180° - 90°

2 angle B = 90°

angle B = 90° / 2

angle B = 45°

angle B = angle C ( we have proved above)

angle C = 45°


Hope this helps!!

If you have any doubt regarding to my answer, feel free to ask in the comment section or inbox me if needed.

@Mahak24

Thanks...
☺☺

Answer 2

Hey!

_____________________________________________________________________________________________

Given

AB = AC

∠A = 90°
_______________________________

•Opposite angle are of a triangle are equal

∠B = ∠C

Sum of all angle of triangle = 180°

∠A + ∠B + ∠C = 180°

90° + ∠B + ∠B = 180

90° + 2∠B = 180°

2∠B = 180° - 90°

2∠B = 90°

∠B = 90 ÷ 2

∠B = 45°

______________________________________________________________

∠B = ∠C = 45°

_____________________________________________________________________________________________

Regards :)

Cybary

Be Brainly :)