IXL | Find measures of complementary, supplementary, vertical, and adjacent angles | 7th grade math

or

What is the value of q?

q

70°

°

ref_doc_title.

or

Learn with an example

question

What is the value of v?

50°

v

°

key idea

Complementary angles have measures that add to 90°. When a right angle is divided into two adjacent angles, complementary angles are formed.

solution

50°

v

Add the measures of the complementary angles and set the sum equal to 90°. Then solve for v.

50° + v	=	90°

v	=	90° − 50°

v	=	40°

So, v = 40°.

Looking for more? Try these:

Lesson: Complementary angles

Lesson: Supplementary angles

Lesson: Vertical angles

Lesson: Adjacent angles

or

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Work it out

Not feeling ready yet? These can help:

Y.4Identify complementary, supplementary, vertical, and adjacent angles

T.8Solve two-step equations without parentheses

Lesson: Complementary angles

Lesson: Supplementary angles

Lesson: Vertical angles

Lesson: Adjacent angles