Applying properties of triangles

Find the value of x. x = _____

Nora, Maya, and Ava are trying to figure out the angle of a missing piece in a triangular puzzle. They know that one angle is 40° and another is 70°. Can you help them find out the measure of the third angle?

• 40°

• 90°

• 110°

• 70°

What is the SUM of the angle measures in a triangle (3 sides)?

• 60°

• 90°

• 120°

• 180°

A triangle has one angle measuring 100°. What is the sum of the measures of the other two angles?

• 80°

• 100°

• 120°

• 140°

Find x.

• 60

• 90

• 50

• 180

Solve for x.

• 9

• 13

• 16

• 24

Find x:

• 56

• 51

• 151

• 141

Parallel Postulate is, The sum of the angles in a triangle is 180.

• False

• True

Find the missing Angle.

• 25

• 36

• 90

What is the m<A?

• 46

• 90

• 88

• 134