HG Spring Final 1

Find the sum of the measures of the interior angles of a convex decagon.

• 162

• 1620

• 1800

• 180

Find the measure of an interior angle of a convex 16-gon.

• 2520

• 157.5

• 2880

• 180

Find the sum of the measures of the exterior angles of a decagon.

• 360

• 180

• 1800

• 3600

Find the sum of the measures of the exterior angles of a 45-gon.

• 360

• 180

• 162000

• 7740

The diagonals of square XYZJ intersect at point B. If XB = 5x + 7 and YJ = 12x + 4 find x

• .43

• -1/18

• 5

• -5

Similar polygons have:

• Congruent Sides

• Congruent Angles

• Proportional Angles

• Pythagorean Theorems

The radius of a circle is 9mm. What is the circumference?

• 28.26

• 254.34

• 56.52

• 508.68

Two congruent chords are equidistant from the center of a circle.

• True

• False

The circumference of a circle is 50.24ft. What is the diameter of the circle

• 8 ft

• 16 ft

• 4 ft

• 315.51 ft

What is the center of the circle whose equation is: (x + 5)² + (y - 2)² = 100

• (-5, -2)

• (5, -2)

• (-5, 2)

• (5, 2)