Question

angle bac and angle dae are complementary. What is the measure of angle Dae

Answer 1

This construction takes a given angle and constructs its complementary angle. Recall that the complementary angle is one that makes the given angle become 90°. So an angle of 30° has a supplementary angle of 90° - 30° = 60°.

...

Proof.

Argument Reason

2 m∠FAB and m∠BAC are complementary m∠FAB + m∠BAC = 90° See (2)

2 more rows