Question

Choose 1 answer:

A vertical angles
B complementary angles
C supplementary angles
D none of the above

Answer 1

the answer is B

Explanation:

Answer 2

B complementary angles

Explanation:

ED is a line.

Angles EAB and DAB are a linear pair, so they are supplementary.

Angle EAB is a right angle, so angle DAB is also a right angle.

The measure of angle DAB is 90 degrees.

The sum of the measures of angles a and b is 90 degrees.

That makes <a and <b complementary angles.