Triangles - Angles and Sides

Which set of side lengths could NOT be used to form a triangle?

• 2 cm, 6 cm, 7 cm

• 7 cm, 15 cm, 8 cm

• 5 cm, 5 cm, 5 cm

• 8 cm, 9 cm, 6 cm

Tags

CCSS.7.G.A.2

What is the missing angle measure in the triangle?

• 24°

• 34°

• 44°

• 46°

Tags

CCSS.8.G.A.5

Two sides of a triangle have measures of 6 inches and 12 inches. Which measure could be the length of the third side?

• 5 in

• 6 in

• 10 in

• 18 in

Which set of side lengths could be used to form a triangle?

• 4 ft, 5 ft, 9 ft

• 8 ft, 6 ft, 15 ft

• 12 ft, 2 ft, 10 ft

• 5 ft, 8 ft, 12 ft

Tags

CCSS.7.G.A.2

Mario is designing a logo for the drama club. The logo is a triangle with a 100° angle and a 40° angle. What is the measure of the third angle of the logo?

• 60°

• 50°

• 40°

• 30°

Tags

CCSS.8.G.A.5

Brooke drew a triangle. One side of the triangle is 6 centimeters long. Another side of the triangle is 11 centimeters long. Which could be the length of the third side of the triangle?

• 3 centimeters

• 5 centimeters

• 12 centimeters

• 17 centimeters

Which set of side lengths could be used to form a triangle?

• 4 in, 5 in, 6 in

• 8 in, 12 in, 4 in

• 11 in, 10 in, 21 in

• 5 in, 7 in, 12 in

Tags

CCSS.7.G.A.2

Keith drew a triangle. One angle measures 78°. Another angle measures 27°. What is the measure of the third angle of the triangle?

• 75°

• 63°

• 51°

• 12°

Tags

CCSS.8.G.A.5

An isosceles right triangle has a 90° angle and two equal acute angles. What is the measure of each of the acute angles?

• 35°

• 40°

• 45°

• 50°

Tags

CCSS.8.G.A.5

Determine if it is possible to form a triangle with the given side lengths. 7 yd, 8 yd, 9 yd

• yes
• no

Tags

CCSS.7.G.A.2