Interior and Exterior Angles of Triangles Quiz

The sum of the interior angles of a triangle is always

• 90°

• 180°

• 270°

• 360°

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TEKS.MATH.8.8D

The measure of an exterior angle and its adjacent interior angle are

• supplementary

• congruent

• complementary

• not related

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TEKS.MATH.8.8D

Find the measure of x.

• 31°

• 53°

• 123°

• 127°

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TEKS.MATH.8.8D

Find the measure of x.

• 61°

• 65°

• 115°

• 127°

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TEKS.MATH.8.8D

Solve for x and then find the difference of the angle measures.

• 18°

• 20°

• 36°

• 42°

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TEKS.MATH.8.8C

Which of the following set of measures could represent angles of triangles? Select 3 answers.

• 20°, 100°, 150°

• 5°, 85°, 90°

• 60°, 60°, 60°

• 37°, 68°, 85°

• 101°, 59°, 20°

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TEKS.MATH.8.8D

Find the value of each interior angle of the triangle. Be sure to show all of your work.

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TEKS.MATH.8.8D