Quiz About Angles and Triangles

You are asked to draw a triangle with side lengths of 6 inches and 8 inches. What is the longest whole number length that your third side can be?

• 13 inches

• 14 inches

• 15 inches

• 10 inches

a 70° angle, a 30° angle, an 80° angle

How many triangles can be made with the angle measures shown here?

• No triangle

• a unique triangle

• More than 1 triangle

• the answer cannot be determined

Given the following three measures of sides, determine if it is possible to construct a unique triangle, more than one triangle, or no triangle.

5 inches 8 inches 15 inches

• no triangle

• a unique triangle

• more than 1 triangle

• the answer cannot be determined

Find the value of x.

• 21

• 27

• 31

• 34

If m∠A = 87° and m∠BIf m∠A = 87° and m∠B = 32°, find the measure of the exterior angle, ∠1. ∠1.

• 29

• 61

• 83

• 119

Which choice best describes the angles shown?

• Adjacent

• Complementary

• Supplementary

• Vertical

Ellen's teacher wants her to draw a triangle. She starts by drawing a line 10 centimeters long and two angles, 40° and 70°. What will the third angle measure?

• 40

• 50

• 60

• 70

Which equation could be used to solve problems involving the relationships between ∠XQM and ∠RQM?

• 180 + (140 − 7a) = (70 − 3a)

• 180 + (70 − 3a) = (140 − 7a)

• 180 - (140 - 7a) = (70-3a)

• (140 − 7a) − (70 − 3a) = 180