Area Equations
What is the area formula for a rectangle?
A = length x width or lw
Find the area of the rectangle with
length = 8 cm
width = 5 cm.
A = 40 cm2
Find the area of a rectangle with
length = 6 1/2 cm
width = 5 cm
A = 32.5 cm2
The library is getting new bright red carpet. If the library is a rectangle with a length of 10.5m and a width of 6.5m. How much carpet will the room need?
The library will need 68.25 m2 of carpet.
A rectangle has an area of 24 in2 and the height is 4 in. What is the length of the base?
6 inches
What is the area formula for a parallelogram?
A = bh
Find the area of a rectangle that has a side length of
12 cm and width of 11 cm.
A= 132 cm2
Find the area of a rectangle with
length = 7.5 inches
width = 6.3 inches
A = 47.25 in2
The grade with the most students at DFMS
What is 8th grade?
A parallelogram has an area of 30 m2 and has a base
of 10 m. What is the height?
3 meters
How do you find the area of a triangle?
A=1/2bh or A=bh/2
Find the area of a right triangle with
base = 13ft
height = 4ft.
A=26 ft2
Find the area of a triangle with
base = 7.2 cm
height = 8 cm.
A = 28.8 cm2
Ms. Laverty needs to plant grass in her backyard. Her rectangle-shaped backyard is 36 ft wide and 60 ft long. What is the area of ground that needs grass?
2160 ft2
The area of a rectangle is 42 cm2.
If the height is 14 cm, what is the base?
3 cm
How do you find the area of a square?
A=s x s or A=l x w
Find the area of a triangle if it has a
base = 6m
side = 5m
height = 8m.
A=24 m2
Find the area of a triangle with
base = 9 cm
sides of = 7 cm
height = 4 cm.
A = 18 cm2
Mr. Mussolini needs to carpet his office. His rectangle-shaped office measures 12 ft. wide by 14 ft. long.
Carpet costs $3 per square foot. How much will it cost in total?
$504
A triangle has an area of 64 in2 and a height of 8 in. What is the base?
16 in
What is the formula for the area of a trapezoid?
A = 1/2h(b1+b2)
Find the area of a trapezoid with
bases = 6 in and 8 in
height = 3 in.
A=21 in2
Find the area of a triangle with
base = 21 in
height = 30 in.
A = 315 in2
A pizza box has an area of 400 in2. The length of one side is 20 inches. What is the width of the other side? What is the shape of the pizza box?
20 inches
I am the tallest teacher at DFMS
Who is Mr. Gonzalez?