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Geometry
Unit 2
Worksheet Answers
(7, 8)
29.
x = 20
(1, 2), (2, 3), (3, 4)
30.
x = 160, y = 20
(1, 4), (9, 6)
31.
6.3 dm
3.
(1, 3), (2, 4)
32.
18.8 hm
4.
x = 27
33.
12.6 units
5.
x 
85
7
34.
31.4 units
35.
18.8 units
6.
x = 15, y = 165
36.
32 mm
7.
(1, 2)
37.
31 m
(3, 4), (6, 7), (8, 9)
38.
38 hm
(7, 8), (9, 6)
39.
14 dm
(6, 8), (7, 9)
40.
20 km
10.
x = 10
41.
18 units
11.
x 
42.
18 units
43.
9π km2
44.
64π hm2
45.
20 cm2
(8, 9), (9, 6)
46.
18 dm2
15.
(6, 8), (7, 9)
47.
27.5 mm2
16.
x = 24
48.
30 km2
17.
x = 17
49.
40 units2
18.
x = 10, y = 170
50.
16 units2
19.
(7, 8)
51.
16π units2
(2, 9), (3, 5), (5, 4)
52.
16 units2
(4, 6), (3, 6)
53.
9 units2
21.
(3, 4), (5, 6)
54.
9 m2
22.
x = 10
55.
4 cm2
23.
x = 30
56.
64 m2
24.
x = 30, y = 150
57.
81 cm2
25.
x 
47
2
58.
9π cm2
59.
16π cm2
60.
25π cm2
61.
36π cm2
1.
2.
8.
9.
39
4
12.
x = 10, y = 170
13.
(1, 2)
14.
20.
(3, 4), (6, 7), (7, 8)
26.
x = 15
27.
x = 125, y = 55
28.
x = 35
Page 1 of 3
© Mastery Mathematics
8/11/01
Geometry
Unit 2
62.
If an object weighs one pound,
then it weighs 16 ounces.
63.
If three points lie on the same
line, then they are collinear.
64.
If a fish is a blue trunkfish, then it
lives in the waters of a coral reef.
65.
If an angle is a right angle, then
it has a measure of 90˚.
66.
If on object is a line, then it
contains at least two points.
67.
If a snake is a constrictor, such
as a python, then it is not
poisonous.
68.
True
69.
If an angle has a measure of 90˚,
then it is a right angle.
70.
True
71.
If an angle is not a right angle,
then it does not have a measure
of 90˚.
Worksheet Answers
83.
If an angle is divided into two
congruent parts, then the angle
is bisected.
84.
True
85.
If an angle is not bisected, then it
is not divided into two congruent
parts.
86.
True
87.
If an angle is not divided into two
congruent parts, then it is not
bisected.
88.
True
89.
Many states, such as
Massachusetts, are also east of
Arizona.
90.
You could have math class
second hour.
91.
You could work at your job on
Fridays.
92.
25˚ is also an acute angle.
72.
True
93.
73.
If an angle does not have a
measure of 90˚, then it is not a
right angle.
Honda is also a brand for an
automobile.
94.
let x = -5, then (-5)2 = 25
95.
let x = 2 and y = -3,
then (x)2 < (-3)2
74.
True
75.
True
96.
76.
If the sum of two angles is 180˚,
then the angles are
supplementary.
Points A, B, and C are on plane
P if and only if point D is on
plane Y.
97.
If point W is not on the same line
as X and Y, then points X, Y,
and D are not on the same line
as X and Y.
98.
intersects
at a pint if
and only if point P is the point of
intersection.
99.
If John has the fastest time for
the 100 butterfly, then John is a
good swimmer.
77.
True
78.
If two angles are not
supplementary, then the sum of
the angles is not 180˚.
79.
True
80.
If the sum of two angles is not
180˚, then the angles are not
supplementary.
81.
true
82.
True
Page 2 of 3
100.
Sarah did not go to the mall if
and only if Sarah did not go to
the movies.
© Mastery Mathematics
8/11/01
Geometry
Unit 2
Worksheet Answers
101.
Freshmen do not want to be like
sophomores.
102.
Valid
103.
Invalid, mA could be any value
greater than 90˚.
118.
104.
Invalid, Whiskers could be any
type of animal.
119.
5.4
105.
Valid
120.
8.6
106.
Valid
121.
10.6
107.
∆XYZ is an isosceles triangle.
122.
5
108.
Line k lies within plane P.
123.
5.4
109.
No conclusion – OR – ABCD is
not necessarily a square.
124.
3.2
125.
3
( , 4)
2
126.
3 11
( , )
2 2
110.
63, 127
Multiply previous term by two
and add 1
111.
26, 31
Add 5 to each term
127.
(0, 2)
112.
18, 29
Add two previous terms together
to get the next term
128.
3
( , 1)
2
113.
24, 35
Add odd values to each term
starting with 3
129.
1
( , 2)
2
130.
(
1 7
, )
2 2
114.
37, 50
Add odd values to each term
starting with 1
131.
x = 10
132.
x = 18
115.
768, -3072
Multiply by -4
133.
x=1
134.
x = 12
135.
x=6
136.
x=9
116.
117.
Page 3 of 3
© Mastery Mathematics
8/11/01