# A-Geometry Ch 8 Review Prize Show ```A-Geometry
Ch 8 Review
Prize Show
Tootsie rolls
Paper airplane
contest: ? Vs. ?
Jolly
ranchers 
4.
Pictionary: ?
Vs. ?
7.
8.
Starburst
1.

Vs. ?
10.
2.
5.
3 pts EC on
Test!
11.
Donut
3.
holes!!
6.
Tiger roar contest:
? Vs. ?
9.
Hangman, by
?
Saturday Night
Fever: disco
dance-off: ?
Vs. ?
12.
1. Always, Sometimes or Never?
a.) If the vertex 's of 2 isosceles 's
Always
are , then the 's are .
b.) If one of the base 's of an isosceles
  one of the base 's of another
isosceles , then the  ' s are .
Always
c.) Two squares are . Always
d.) Two rhombuses are
. Sometimes
2. Always, Sometimes or Never?
a.) If 2 's are , then they
.
Always
b.) If 2 's are , then they  .
Sometimes
c.) If 2 's are , then the ratio of
their perimeters = the ratio of
a pair of corresponding sides. Always
3.a.) If mQ = 80, what is the ratio
of the complement of Q to
the supplement of Q ?
Complement 90  80
10
1



Supplement 180  80 100 10
3.b.) What is the 4th proportional to
1
1
, 4 and 8 ?
2  8 so, 1 x  32,
2
4 x
2
and x  64
4.a.) What is the geometric mean of
4.6 and 12.8 ?
4.6
x
2

so, x  58.88 and x  7.7
x
12.8
4.b.) What is the arithmetic mean of
4.6 and 12.8 ?
4.6  12.8
 8.7
2
5.a.) If BIG MAC,
IG
then
=?
BG
AC
MC
x  2 y 2x  3 y
5.b.) If

,
5
6
what is the ratio of x to y?
x 27

y
4
6.a.) What is the value of x?
x
12
4
x6
8
6.b.) A  has side lengths of 7, 8 &amp; 9.
A  has a perimeter of 72.
What is the shortest side of the
Shortest side = 21
789 7

72
x
?
x
9
8
&gt;10
&gt;
12
y
7a.) What is the value of x?
x6
7b.) What is the value of y?
y  25
8.) What is the length of KE?
8
P
U
4
6
E
K
10
N
Given: PUNK is a trapezoid
with bases PU &amp; KN .
KE  5
9.) As x increases by 5, how much
does y increase or decrease?
y
 B(12, 20)

A(2, 4)
x
y increases by 8
when
x increases by 5.
10.) What are the values of x and y?
y
x
9
6 5
 , so x  2.4
x 2
2
6
3
6
5
 , so y  10.8
y  2.4 11
11.) What is the length of PC?
M
9
P
15
12
30&deg;
N
C
A
Given: PAC is a reduction of MAN.
12
24

, so PC  7.5
PC 15
5
2 &gt;
&gt;
&gt;
S
O
U
6
&gt;
P
SU
12.a.) What is
?
UP
12.b.) If SU = 14,
what is SO?
SU 7

UP 6
SO 14
 , so SO  4
2
7
```