Find Angle Measurements of Triangles

What do the angles in an equilateral triangle measure?

• 30, 60, 90

• 45, 45, 90

• 60, 60, 60

• 35, 55, 90

Find the measure of the indicated angle. 

• 26

• 36

• 85

• 144

How many acute angles must an acute triangle have?

• 2

• 1

• 4

• 3

Find the measure of angle D.

• 140 degrees

• 16 degrees

• 40 degrees

• 90 degrees

Find the missing angle.

• 29° 

• 39° 

• 49° 

• 59° 

A triangle has angle measurements of 163°, 2°, and 15°. What kind of triangle is it?

• acute triangle

• right triangle

• obtuse triangle

• none of the above

A triangle has angle measurements of 74°, 90°, and 16°. What kind of triangle is it?

• acute triangle

• right triangle

• obtuse triangle

• none of the above

• 65^o
• 30^o
• 115^o
• 180^o

• 65^o
• 115^o
• 30^o
• 90^o

Find the measure of the missing angle.

• 47

• 57

• 53

• 133