16.
b.
The area of a circle is equal to
π
r
2
. The radius of
the inner circle is 5 m; therefore, the area of the
inner circle is 25
π
m
2
. The radius of the outer
circle is (1.2)(5) = 6 m; therefore, the area of the
outer circle is 36
π
. Subtract the area of the inner
circle from the area of the outer circle: 36
π
– 25
π
= 9
π
m
2
.
x
y
y
+
xy
x
x
y
5.4 + 5.6 + 5.4 + 6.3 + 5.3
5
1
81
–
1
4
1
16
1
4
3
8(–
1
4
)
1
–
1
4
–
P R A C T I C E T E S T 1
–
1 9 5
W
hen you are finished, review the answers and explanations that immediately follow the test.
Make note of the kinds of errors you made and review the appropriate skills and concepts before
taking another practice test.
C H A P T E R
Practice Test 2
This practice test is a simulation of the three Math sections you will
complete on the SAT. To receive the most benefit from this practice test,
complete it as if it were the real SAT. So take this practice test under
test-like conditions: Isolate yourself somewhere you will not be dis-
turbed; use a stopwatch; follow the directions; and give yourself only
the amount of time allotted for each section.
10
1 9 7
|
