Triangle Sum and Exterior Angle Theorem Review

Front

What is the Triangle Sum Theorem?

Back

The Triangle Sum Theorem states that the sum of the interior angles of a triangle is always 180 degrees.

Tags

CCSS.8.G.A.5

Front

If one angle of a triangle is 79° and another is 43°, what is the measure of the third angle?

Back

58°

Tags

CCSS.8.G.A.5

Front

What is an exterior angle of a triangle?

Back

An exterior angle is formed by one side of a triangle and the extension of an adjacent side. It is equal to the sum of the two remote interior angles.

Tags

CCSS.8.G.A.5

Front

What is the measure of angle A if the other two angles in the triangle are 54° and 64°?

Back

62°

Tags

CCSS.8.G.A.5

Front

Which set of angles can form a triangle? 1) 45°, 65°, 70° 2) 150°, 110°, 100° 3) 50°, 50°, 50° 4) 90°, 90°, 90°

Back

45°, 65°, 70°

Tags

CCSS.8.G.A.5

Front

What is the relationship between an exterior angle and its remote interior angles?

Back

An exterior angle is equal to the sum of the two remote interior angles.

Tags

CCSS.8.G.A.5

Front

What is the measure of an angle if its supplement is 116°?

Back

64° (because 180° - 116° = 64°).

Tags

CCSS.7.G.B.5

Front

What is the definition of a corresponding angle?

Back

Corresponding angles are pairs of angles that are in similar positions at each intersection where a straight line crosses two others.

Tags

CCSS.8.G.A.5

Front

If two angles are complementary and one angle measures 66°, what is the measure of the other angle?

Back

The other angle measures 24° (because 90° - 66° = 24°).

Tags

CCSS.7.G.B.5

Front

What is the sum of the angles in any triangle?

Back

The sum of the angles in any triangle is always 180°.

Tags

CCSS.8.G.A.5