Practice With Triangles and Angles 2

Front

What is the value of x in the equation if x + 72 = 180?

Back

108

Front

True or False: Complementary angles add up to 180 degrees.

Back

False

Front

What is the measure of BC if AB = 10 and AC = 12 in triangle ABC?

Back

12

Front

COMPLEMENTARY angles always add up to what?

Back

90

Front

What is the vertical angle to angle 4 when two parallel lines are cut by a transversal?

Back

Angle 7

Front

What is the sum of the interior angles of a triangle?

Back

180

Front

If two angles are supplementary, what is their sum?

Back

180

Front

What do you call angles that are opposite each other when two lines intersect?

Back

Vertical angles

Front

In a right triangle, what is the relationship between the lengths of the sides?

Back

a² + b² = c² (Pythagorean theorem)

Front

What is the measure of an angle that is complementary to a 30-degree angle?

Back

60