Triangle Practice

Find the measure of each angle indicated.

• 50
• 20
• 29
• 48

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

• 32, 34, 60
• 28, 30, 58
• 13, 20, 27
• 2, 4, 5

Will these line segments form a triangle?

• yes

• no

In triangle ABC, the length of side AB is 10 inches and the length of side BC is 17 inches.  Which of the following could be the length of side AC?

• 16 inches
• 5 inches
• 32 inches
• 29 inches

You have a triangle with two angles measures of 60^o. What is the measure of the third angle?

• 180^o

• 120^o

• 20^o

• 60^o

You have a triangle with angle measures of 43^o and 78^o. What is the measure of the third angle?

• 35^o

• 121^o

• 59^o

• 57^o

Classify the triangle by angles and sides.

• Right Scalene
• Acute Isosceles
• Obtuse Isosceles
• Equiangular Equilateral

A _________ triangle has no equal sides.

• scalene

• isosceles

• equilateral

A triangle has angle measurements of 26°, 59°, and 95°. What kind of triangle is it?

• acute triangle
• right triangle
• obtuse triangle
• none of the above

Find the missing angle.

• 29° 
• 39° 
• 49° 
• 59°