Question 1

A convex polygon has 13 sides.  Find the sum of the measures of the interior angles.

Accepted Answer

1980 degrees

Answer

2160 degrees

Answer

1700 degrees

Answer

2340 degrees

Question 2

The measure of an interior angle of a regular polygon is 120 degrees.  Find the number of sides.

Accepted Answer

6

Answer

9

Answer

12

Answer

8

Question 3

Is this polygon convex or concave?

Accepted Answer

Convex

Answer

Concave

Question 4

Find the value of x.

Accepted Answer

20 degrees

Answer

24 degrees

Answer

18 degrees

Answer

28 degrees

Question 5

Find the measure of one exterior angle of a regular, convex 24-gon.

Accepted Answer

15 degrees

Answer

16.4 degrees

Answer

24 degrees

Answer

21.8 degrees

Question 6

A regular polygon is equiangular, but does not have to be equilateral.

Accepted Answer

False

Answer

True

Question 7

Find the measure of each interior angle for quadrilateral LMNP.

Accepted Answer

100, 110, 70, 80

Answer

100, 80, 120, 60

Answer

90, 130, 60, 80

Question 8

Find an interior and exterior angle of a regular 24-gon.

Accepted Answer

interior = 165 degrees, exterior = 15 degrees

Answer

interior = 146 degrees, exterior = 34 degrees

Answer

interior = 165 degrees, exterior = 25 degrees

Answer

interior = 175 degrees, exterior = 15 degrees

Question 9

What is the definition of a parallelogram?

Accepted Answer

A quadrilateral with 2 pairs of parallel sides.

Answer

A quadrilateral with 1 pair of parallel and congruent sides.

Answer

A quadrilateral with opposite angles congruent.

Answer

A quadrilateral with diagonals that bisect each other.

Question 10

Find the coordinates of the intersection of the diagonals of parallelogram ABCD with the given vertices: A(-4, 3), B(2, 3), C(-1, -2), D(-7, -2)

Accepted Answer

($-5/2$, $1/2$)

Answer

($1/2$, $-5/2$)

Answer

($-3/2$, $-1/2$)

Answer

($5/2$, $-3/2$)

Question 11

Find the value of each variable.

Accepted Answer

x = 43 degrees, y = 120 degrees

Answer

x = 43 degrees, y = 128 degrees

Answer

x = 51 degrees, y = 112 degrees

Answer

x = 45 degrees, y = 135 degrees

Question 12

Is this polygon convex or concave?

Accepted Answer

Concave

Answer

Convex

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