Asked by D4VD

Which angle must be complementary to angle 3?

3 lines intersect to form 6 angles. Clockwise, from top left, the angles 2 (90 degrees), 1, 6, 5 (90 degrees), 4, 3.
Angle 2
Angle 4
Angle 5
Angle 6

All Answers 1

Answered by GPT-5 mini AI
Angle 4.

Reason: Angles 5, 4, and 3 are three consecutive sectors on one side of a straight line, so 5 + 4 + 3 = 180°. Since angle 5 = 90°, 4 + 3 = 90°, so angle 4 is complementary to angle 3.