LAST NAME ___________________________________ DATE _____ PD. ___
GEOMETRY TEST CHAPTER 11 PRACTICE TEST
1. Find the sum of the measures of the interior
angles in the figure.
2. A regular pentagon has five congruent interior
angles. What is the measure of each angle?
3. The sum of the measures of the interior angles of
a convex quadrilateral is _____.
[A]
540
°
[B]
360
°
[C]
270
°
[D]
180
°
4. The base of a gazebo is a regular 20-gon with 6-
foot sides. Find its apothem, a
, to the nearest tenth
of a foot.
5. Find the number of sides of a regular polygon
with each interior angle equal to 120
°
.
6. Find the area of a regular dodecagon with radius
3 cm.
7. The perimeter of an equilateral triangle is 18.
Find its area.
8. Two similar trapezoids have areas 75
2
cm and
12
2
cm . Find the ratio of similarity.
9. The ratio of the side lengths of two regular
hexagons is 4 to 9. If the area of the smaller
hexagon is 16 square units, then the area of the
larger hexagon is _____.
[A]
256
81
sq. units
[B] 36 sq. units
[C] 64
9
sq. units
[D] 81 sq. units
10. Leila needs to make a poster that is 2.5 m by 5
m for the big game. The cost of the paper is $3.25.
Later she needs another poster with dimensions 1.25
m by 2.5 m. What is the paper for this poster likely
to cost?
11. Find the circumference of a circle with radius 7
cm.
Use
π
≈
3
14
.
.
12. For a circle of radius 8 feet, find the arc length
of a central angle of 24
°
. Leave your answer in
terms of
π
.
13. Circle
O
has a radius of 7.39. If
m
∠
AOB
is
112°, then find the length of
A
B
)
to one decimal
place.
14. An automobile has 20-inch diameter wheels. If
the wheels revolved three times after the brakes
were applied, the stopping distance was
approximately _____.
