4.2 Triangle Angles

In a right triangle, how many degrees do the three angles add up to?

• 90 degrees

• 180 degrees

• 360 degrees

• 212 degrees

Tags

CCSS.HSG.CO.C.10

The exterior angle of a triangle is equal to....

• the interior adjacent angle

• the sum of the two remote interior angles

• 180 degrees

• two times the measure of the interior angle

Tags

CCSS.7.G.B.5

Angles along one side of a straight line, add up to...

• 360 degrees

• 180 degrees

• 90 degrees

• 32 degrees

Tags

CCSS.7.G.B.5

If two angles of a triangle are congruent and 80 degrees each, what is the measure of the third angle?

• 80 degrees

• 200 degrees

• 20 degrees

• A triangle cannot have two congruent angles that are 80 degrees each.

Tags

CCSS.7.G.B.5

CCSS.7.G.A.2

If an exterior angle of a triangle is 50 degrees, the interior angle will measure...

• 50 degrees

• 40 degrees

• 30 degrees

• 130 degrees

Tags

CCSS.7.G.B.5

Two of the angles in this triangle are shown to have measures of 130^o and 20^o . What is the measure of the third angle of this triangle?

• 60

• 30

• 20

• 20

Tags

CCSS.7.G.B.5