Question

If the vertex angle of an isosceles triangle is 90 degree then find the base
angle

Answer 1

Answer:45 degree

Reason:

As it is an isosceles triangle, so its two sides must be same.

As it is a right angled triangle, so the sides other than the hypotenuse are equal in length.

We know that angles opposite to equal sides of an isosceles triangle are equal. So the two angles are equal.

Sum of the two equal angles

=180- 90

=90

As the two angles are same so the base angle =90/2 =45

Answer 2

answer =45 degree...

Step-by-step explanation:

half of 90 is equal to 45 degree