AM7 Triangles

The sum of the three interior angles of any triangle always equals _______________.

• 90 degrees

• 180 degrees

• 360 degrees

• it varies

Find the measure of the missing angle.

• 95

• 85

• 35

• 45

Find the measure of the missing angle.

• 26

• 36

• 85

• 144

Set up an equation to find the value of x.

• x = 54

• x = 9

• x = 24

• x = 144

Set up an equation to solve for x, then find the measure of angle A.

• 44^o

• 96^o

• -14^o

• 63^o

Set up an equation to find the value of x.

• x = 15

• x = 9

• x = 12

• x = 11

The measures of the angles in Triangle DEF are in the ratio 2:4:6. What are the measures of the angles?

• 20 degrees, 40 degrees, 60 degrees

• 40 degrees, 50 degrees, 90 degrees

• 30 degrees, 60 degrees, 90 degrees

• Not enough information given

The measures of the angles in Triangle XYZ are in the ratio 4:5:9. What are the measures of the angles?

• 30 degrees, 60 degrees, 90 degrees

• 40 degrees, 50 degrees, 90 degrees

• 50 degrees, 60 degrees, 70 degrees

• Note enough information given

Find the measure of the exterior angle (x).

• 100

• 55

• 45

• 80

What is the measure of angle b?

• 36^o

• 56^o

• 63^o

• 117^o