Grade 7 · Geometry & measurement

Angle relationships practice

Angle relationships is a grade 7 math skill aligned to Common Core standard 7.G.B.5: use facts about supplementary, complementary, vertical, and adjacent angles in a multi-step problem to write and solve simple equations for an unknown angle in a figure. Below are 8 practice questions with answers and step-by-step explanations, drawn from the 49 angle relationships problems our math games drill.

CCSS 7.G.B.549 questions in the bank
Sample questions

Try 8 for free

Question 1easy

Two angles are complementary. One measures 60°60°. What is the other?

90−60=30°90 - 60 = 30°.

Question 2easy

Two angles are supplementary. One measures 45°45°. What is the other?

180−45=135°180 - 45 = 135°.

Question 3easy

Two lines cross. One angle formed is 75°75°. What is the vertical angle?

Vertical angles are equal, so the angle is 75°75°.

Question 4easy

Two angles are complementary. One measures 5°5°. What is the other?

90−5=85°90 - 5 = 85°.

Question 5easy

Two angles are supplementary. One measures 15°15°. What is the other?

180−15=165°180 - 15 = 165°.

Question 6easy

Two lines cross. One angle formed is 20°20°. What is the vertical angle?

Vertical angles are equal: 20°20°.

Question 7easy

Two angles are complementary. One measures 10°10°. What is the other?

90−10=80°90 - 10 = 80°.

Question 8easy

Two angles are supplementary. One measures 25°25°. What is the other?

180−25=155°180 - 25 = 155°.

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Math games for Grade 7

Questions like these are served inside our head-to-head math games.

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Tests that cover angle relationships:
NAEPSBACPSAT 8/9SC READYNC EOG/EOC
More Grade 7 skills:
Combining like terms and distributingCompound probabilityInteger operationsPercent problemsCircle formulasOne-event probability word problemsPercent proportion word problemsSolving one- and two-step linear equationsAll Grade 7 practice →

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