Question

In the given triangle right angled at B, which pair of angles are complementary?

• A. B and C
• B. A and B
• C. C and A
• D. None of the above

Answer 1

The correct option is C

C and A

Two angles are said to be complementary, if their sum is ${90}^{\circ }$. The triangle is right angled at B.
With angle sum property of the triangle,∠A+∠B+∠C=${180}^{\circ }$

∠A+∠C=${90}^{\circ }$, Hence angle A and C are complementary.