IXL | Find measures of complementary and supplementary angles

What is the value of t?

40°

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Learn with an example

The measure of an angle is 44°. What is the measure of its complementary angle?

Complementary angles have measures that add to 90°.

ABC and

CBD are complementary angles.

Since the angles are complementary, their measures must add to 90°. Set up an equation and solve for n.

44°

90°

44°

−

44°

90°

−

44°

46°

The measure of the complementary angle is 46°.

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