Question

Triangle ABC is a right triangle.

What is the relationship between angles A and B?

They are congruent.
They are complementary.
They are supplementary.
There is no relationship between them.

Answer 1

They are complementary because they add up to a 90 degree angle

Answer 2

They are complementary

Explanation:

Triangle ABC is a right triangle.

Since ABC is a right angle triangle one angle in the triangle is 90 degree

WE know sum of angles in a triangle is 180 degree

one angle is right angle 90 degree

sum of other two angles forms 90 degree

When the sum of angles =90 degree then they are complementary angles

complementary angles add upto 90 degree

So they are complementary