Exterior Angle Theorem Video

What defines a triangle?

• An open shape with three angles

• A closed figure with five angles

• A polygon with three sides

• A shape with four sides

Tags

CCSS.2.G.A.1

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

• 180 degrees

• 360 degrees

• 90 degrees

• 270 degrees

Tags

CCSS.8.G.A.5

How can you find a missing angle in a triangle if you know the other two angles?

• Add the two angles and divide by 2

• Subtract the sum of the two angles from 360 degrees

• Multiply the two angles together

• Subtract the sum of the two angles from 180 degrees

Tags

CCSS.8.G.A.5

If a triangle has angles measuring 33 degrees and 44 degrees, what is the measure of the third angle?

• 89 degrees

• 66 degrees

• 103 degrees

• 57 degrees

Tags

CCSS.8.G.A.5

Can a triangle have angles measuring 33 degrees, 44 degrees, and 93 degrees?

• No, because they sum up to less than 180 degrees

• Yes, because they sum up to 180 degrees

• No, because they sum up to more than 180 degrees

• Yes, because one angle is larger than the others

Tags

CCSS.8.G.A.5

How do you find the measure of each angle in a triangle given the ratio of angles is 1:2:6?

• Divide 180 by each part of the ratio separately

• Add the ratio parts and multiply by 180

• Multiply the ratio by 180 and add them up

• Divide 180 by the sum of the ratio parts

Tags

CCSS.8.G.A.5

What does the Exterior Angle Theorem state?

• The exterior angle is twice the sum of the interior angles

• The exterior angle is equal to the sum of all interior angles

• The exterior angle is equal to the sum of the two opposite interior angles

• The exterior angle is equal to the adjacent interior angle

Tags

CCSS.8.G.A.5

If one of the remote interior angles of a triangle is 63 degrees, what could be the measure of the exterior angle?

• 147 degrees

• 126 degrees

• 117 degrees

• 63 degrees

Tags

CCSS.8.G.A.5

What is the sum of the measures of the remote interior angles if the exterior angle measures 147 degrees?

• None of the above

• 294 degrees

• 73.5 degrees

• 147 degrees

Tags

CCSS.8.G.A.5

Find the measure of the missing angle.

• 30^o
• 110^o
• 150^o
• 40^o

Tags

CCSS.8.G.A.5