Question

12.Find the measure of the angles of an isosceles right-angled triangle.​

Answer 1

isoceles triangle means having two sides congruent

therefore sides are equal then corresponding angles also equal

so,angle be 45°

Answer 2

Step-by-step explanation:

We know that sum of three angles of a triangle is 180° and in Isosceles two angles of a triangle is equal.

Given ;

Right angles Triangle: means 1 angle is 90°

And let the two angle be x

x + x + 90° = 180°

2x + 90° = 180°

2x = 180° - 90°

2x = 90°

x = 90°/2

x = 45°

Hence;The dimensions of the triangle are:

90° , 45° , 45°

Hope it helps!!