... 180(x Ϫ 2)
S ϭ 180(6 Ϫ 2)
S ϭ 180(4)
S ϭ 72 0
The sum of the angles in the polygon is 72 0°.
12
4
3
m∠1 + m∠2 + m∠3 + m∠4 = 360°
B
CF
A
D
E
–GEOMETRY REVIEW–
1 27
Answer
a. To find the length of an arc, ... ϭ
ᎏ
81
3
π
ᎏ
A ϭ 27
The area of the sector is 27 .
x°
r
r
secto
r
–GEOMETRY REVIEW–
123
Practice Question
What is the area of the sector shown above?
a.
ᎏ
4
3
9
6
π
0
ᎏ
b.
ᎏ
7
3
π
ᎏ
c...
... is the y-intercept of the line?
a. (7, 0)
b. (0 ,7)
c. (7, 7)
d. (2,0)
e. (15,0)
slopes are negative reciprocals
equal slopes
no slope
–GEOMETRY REVIEW–
1 47
Practice Question
Mr. Suarez painted ... translate the questions
into math. Percent questions typically contain the following elements:
■
The percent is a number divided by 100.
75 % ϭ
ᎏ
1
7
0
5
0
ᎏ
ϭ 0 .75 4% ϭ
ᎏ
1
4
00
ᎏ
ϭ 0.04...
... practice essay, get more prompts from resources
such as Acing the SAT 2006 (LearningExpress, 2006) or
11 Practice Tests for the New SAT (Princeton Review,
2004).
Planning Your Essay
Planning takes ... competitor, who was one
–THE ESSAY–
70
Organizing
The third and final stage of planning is organizing.
Because there is a standard formula for high-scoring
SAT essays, organizing is muc...
... – 110 = 70 degrees. OB and DO are
radii, which makes triangle DBO isosceles, and
angles ODB and DBO congruent. Since DBO is
70 degrees, ODB is also 70 degrees, and DOB is
180 – (70 + 70 ) = 180 ... = 7. There are (7) (3) =
21 four-person booths and (7) (5) = 35 two-
person booths.
Section 2 Answers
1. c. Substitute –3 for x and solve for y:
y = –(–3)
3
+ 3(–3) – 3
y = –(– 27) – 9 – 3
y =...