8th Triangles/Polygons Review

Which of the following side lengths form a triangle?

• 1, 2, 3

• 5, 7, 8

• 6, 6, 14

• 80, 20, 50

Measurements of 4 cm, 7 cm, and ​ (a)   form a triangle

• 6 cm
• 11 cm
• 3 cm
• 2 cm
• 12 cm

Which of the following measures DO NOT form a triangle?

• 1, 1, 1

• 7, 7, 7

• 8, 10, 17

• 3, 4, 8

Which of the following side measures DO NOT form a triangle

• 6, 3, 9

• 7, 3, 6

• 10, 19, 11

• 50, 50, 99

Measurements of 80 ft, 40 ft, and ​ (a)   form a triangle.​

• 45 ft
• 20 ft
• 25 ft
• 30 ft
• 35 ft

Find the measure of the missing angle.

Mathematical Equivalence

ON

Solve for x.

Mathematical Equivalence

ON

What is the measure of angle b?

Mathematical Equivalence

ON

Choose a correct equation to find x.

• 4x - 2 + 12x + 1 = 75

• 4x - 2 + 75 = 12x + 1

• 4x - 2 + 75 + 12x + 1 = 180

• 4x - 2 - 75

Solve for x.

Mathematical Equivalence

ON