Do Now
The rectangular matting for
a picture frame has a circular
cutout as shown in the figure.
What is the approximate
area of the matting?
A. 150.6 in2
B. 131.7 in2
C. 124.6 in2
D. 79 in2
A.
B.
C.
D.
A
B
C
D
Objectives:
SWBAT access and apply acquired
knowledge from chapter 11
A. Name a pair of alternate
interior angles?
A.
B.
C.
D.
A
B
C
D
A. If the m3 = 109°, find
m7?
A.
B.
C.
D.
A
B
C
D
Concept A
Use Algebra to Find Missing Angle Measures
ALGEBRA Angles DEF and WXY are
supplementary angles, with mDEF = 2x + 5 and
mWXY = x – 26. Find the value of x and measure
of DEF.
Classify Quadrilaterals
Classify the quadrilateral shown using the name
that best describes it.
Classify the polygon. Then determine whether it
appears to be regular or not regular.
A.
B.
A.
B.
C.
D.
A
B
C
D
Find the measure of each interior angle of a regular
nonagon.
A.
B.
C.
D.
A
B
C
D
Find the exact circumference of a
circle with a radius of 7.2 mm.
A
B
C
0%
D
D
C
0%
B
A
0%
A.
B.
C.
0%
D.
SWIMMING POOL A circular swimming pool has a
circumference of 48 feet. Matt must swim across the
diameter of the pool. How far will Matt swim?
A. 7.6 ft
0%
B
A
D. 150.7 ft
0%
A
B
C
0%
D
D
C. 47.1 ft
A.
B.
C.
0%
D.
C
B. 15.3 ft
Find the area of the shaded region. Round to the nearest tenth.
Concept
Find the area of the figure to the nearest tenth.
A. 71.1 cm2
B. 58.6 cm2
D. 52.3 cm2
0%
C
0%
B
A
0%
0%
D
C. 58.3 cm2
A.
B.
C.
D.
A
B
C
D