Geo Course Preview Lesson 2 Practice Problems

What is true about the three angle measures of any triangle?

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

• The sum of the angles in a triangle is always 90°.

• The sum of the angles in a triangle is always 360°.

• The sum of the angles in a triangle is always 270°.

Tags

CCSS.8.G.A.5

Here is Triangle ABC with angles 28° and 128° labeled. What is the measure of angle C?

• 24°

• 34°

• 18°

• 12°

Tags

CCSS.8.G.A.5

Here is Triangle DEF with angles 122° and 38° labeled. What is the measure of angle D?

• 20°

• 30°

• 45°

• 10°

Tags

CCSS.8.G.A.5

Here is Triangle JKL with angles 20° and 72° labeled. What is the measure of angle L?

• 88°

• 68°

• 108°

• 70°

Tags

CCSS.8.G.A.5

Here is Triangle GHI with angles 56° and 89° labeled. What is the measure of angle I?

• 35°

• 45°

• 67°

• 90°

Tags

CCSS.8.G.A.5

A triangle can have two right angles. Is this statement true or false?

• True

• False

• Only in special triangles

• Only in obtuse triangles

Tags

CCSS.8.G.A.5

In this diagram, lines AB and CD are parallel. Angle ABC measures 35° and angle BAC measures 115°. What is the measure of angle DCB?

• DCB = 35°

• DCB = 45°

• DCB = 55°

• DCB = 65°

Tags

CCSS.8.G.A.5

In this diagram, lines AB and CD are parallel. Angle ABC measures 35° and angle BAC measures 115°. What is the measure of angle ACB?

• ACB = 30°

• ACB = 45°

• ACB = 50°

• ACB = 60°

Tags

CCSS.8.G.A.5

In this diagram, lines AB and CD are parallel. Angle ABC measures 35° and angle BAC measures 115°. What is the measure of angle ACE?

• ACE = 35°

• ACE = 75°

• ACE = 95°

• ACE = 115°

Tags

CCSS.8.G.A.5

Here is a diagram of triangle DEF. Find the measures of angles q, r, and s.

• q = 80°, r = 45°, s = 55°

• q = 100°, r = 135°, s = 125°

• q = 75°, r = 50°, s = 55°

• q = 85°, r = 40°, s = 55°

Tags

CCSS.8.G.A.5