Unit 6 Quest

Find the measure of an interior angle of a regular octagon.

• 45

• 135

• 800

• 1080

If one of the base angles in an isosceles triangle is 47°, what is the measure of the vertex angle?

• 137

• 86

• 94

• 47

If the sum of the interior measures of the angles of a polygon is 1980, how many sides does the polygon have?

• 10

• 13

• 16

• 19

If the measure of one of the interior angles of a regular polygon is 140°, what is the name of the polygon?

• pentagon

• hexagon

• nonagon

• decagon

Find the sum of the exterior angles of a pentadecagon (15 sides).

• 360

• 2340

• 156

• 24

Find YZ

Find the perimeter of triangle AYX

Solve for x

Solve for x

Find x in the triangle at the right.