September 02, 2010
1.5
Perimeter, Circumference, Area
perimeter: distance around a figure
area: number of square units in a region
Square
Rectangle
Triangle
Circle
P = 4s
A = s2
P = 2l + 2w
P = a +b+c
c=
A = lw
A = 1 bh
2
A=
d
r2
September 02, 2010
1. Find the perimeter and area of a rectangle with length 4.5 and
width 0.5cm.
September 02, 2010
2. A road sign consists of a pole with a circular sign on top. The
top of the circle is 10 ft high and the bottom of the circle is 8 ft
high. Find the diameter, radius, circumference, and area of the
circle.
September 02, 2010
3. Find the perimeter and area of
and C(-2,-4).
ABC if A(-2,2), B(3,-1),
September 02, 2010
4. A painter is painting one side of a wooden fence along a
highway. The fence is 926 ft long and 12 ft tall. The directions
on each 5 gal can say that each can will cover 2000 sq. ft. How
many cans of paint will be needed to paint the fence?
September 02, 2010
5. You a designing a mat for an 8 x 10 in picture and it is to be
2 in wide. What is the area of the mat?
September 02, 2010
6. You are making a triangular window. The height is 18 in.
and the area is to be 297 in. What is the base?
September 02, 2010
7. Find the area.
5
3