Selected Answers
for Test 3
HW Set 21 Sec. 6.1
1a)
5 miles
b)
15
2)
a = 5, b = 13, c
= 9, d = 7, e = 12, f = 8
4)
A = 96 cm
2
5)
No
7a)
No
c)
Yes
8)
h = 8
9a)
h = 15 cm
b) 120 cm
2
10)
16 cm
11b)
A = 60 cm
2
HW Set 22 Sec. 6.2
1)
5625
75
is rational
2a)
2
7
b)
7
6
c)
22
3
3a)
x =
2
5
b)
x =
10
4a)
10
b)
12
c)
24
8)
3 m
10)
square
13)
QR = 28 f
14)
MC = 8.5 m
HW Set 23 Sec. 6.3
1) if x = 4, z =
4
2
, if y = 7, z =
7
2
, if x + y = 12, z =
6
2
2a)
If z = 8, y = 4, if z = 12, y = 6, if z
120, y
= 60
b)
If z = 4, x =
2
3
, if z =
10
3
, x = 15, if z = 14, x =
7
3
c)
z =
10
10
3
3
3
3) P =
24
2
m
4)
A =
9
3
m
2
5)
m
A = 60
, m
C = 30
, m
B = 90
6a)
RS =
4
3
b)
ST =
2
6
c)
QT =
2
3
d)
P =
6
3
2
6
6
e)
A =
6
3
6
7)
a =
6
3
b =
229
8a)
AB =
5
,
BC = 2
5
10)
P = 66 cm
A = 204 cm
2
11)
10 f
13a)
EF = 40 cm
b)
DE =
40
2
c)
FH =
40
3
d)
GH = 60 cm
14)
a = 5, x = 45
16)
h =
(50
2
30)
m
HW Set 24 (7.1)
6)
7.5 cm
8)
a) AA
b)
4/3
c)
y = 16
d)
9:16
9)
75 f
10)
13.5 m
11)
x = 10/3
12)
b)
CE = 10
13)
a = 9
b = 20
c = 16
14)
a)
triangle AQP
b) a = 6
b = 6
HW Set 25 (7.2)
2a)
ABC
RST
by AA
b)
ABC
RTS by AA
c)
ABC
RST
has 3 pairs of corresponding sides
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