Question

In an isosceles right angled triangle, the measures of the acute angles are

• A. 40^o, 50^o
• B. 35^o, 55^o
• C. 60^o, 30^o
• D. 45^o, 45^o

Answer 1

The correct option is D

45^o, 45^o

Let each acute angle be x.

x + x + 90^o = 180^o (angle sum property of a triangle)

x = 45^o

Hence, acute angles are 45^o and 45^o.