Name
1-8
Class
Date
Explore
Perimeter, Circumference, and Area
Find the perimeter of each figure. P = 2b + 2h
3.
4. Mrs. Henderson wants to put wallpaper border around her living room. The
room is 18 ft by 22 ft. How many feet of border are needed?
Find the circumference of circle G in terms of π. (C = 2πr)
5.
6.
Coordinate Geometry Graph each figure in the coordinate plane. Find
each perimeter.
7. D(−3, 1), E(−3, 3), F(2, 3)
D = (x2 − x1 ) 2 + ( y2 − y1 ) 2
DE=
DF=
FD=
P= DE + EF + FD = ___________
8. Q(−1, 0), R(2, 3), S(3, −3), T(−1, 3)
D = (x2 − x1 ) 2 + ( y2 − y1 ) 2
QR=
RS=
ST=
QT=
Perimeter = ______
Find the area of each rectangle with the given base and height. Watch units!!!
Formula: A = bh
9. 3 ft, 8 in.
3 ft ⋅
To start, convert 3 ft to inches to make the units the same.
Then substitute for b and h in the area formula.
12 in.
in.
=
______
1 ft
A = bh =
10. A restaurant owner wants to put a cement patio behind his restaurant so people can
eat outside. The patio will be 16 ft wide and 25 yd long. What will the area of the
patio be?
Find the area of each circle in terms of π. Then round to the nearest tenth.
Formula: A = πr 2
11.
12.