Triangle Angles and Sides

Find the measure of the indicated angle. (remember that the sum of interior angles is equal to 180 degrees)

• 95
• 85
• 35
• 45

Find the measure of the indicated angle.

• 26

• 36

• 85

• 144

Do the following side lengths form a triangle?
2 inches, 2 inches, 4 inches

• Yes
• No

9. Which of these lengths CANNOT represent the sides of a triangle?

• 3, 10, 8

• 2, 5, 8

• 7, 5, 4

• 5, 2, 4

Find the measure of each angle indicated. 

• 140°
• 21°
• 105°
• 25°

Can the sides of a triangle have lengths 3, 4, and 9?

• Yes
• No

Can the sides of a triangle have lengths 3, 8, and 9?

• Yes
• No

What is a possible third side to a triangle with side lengths of 13 and 4?

• 9
• 12
• 8
• 5

Find the measure of the indicated angle. 

• 26
• 36
• 85
• 144

Find the measure of each angle indicated. 

• 50°
• 35°
• 100°
• 55°