Formulas
Formula for the parallelogram
A = b x h
A unit square is a square where each side is 1 unit. What is the perimeter?
4 units
Find the area when then the... Base= 5 cm Height=12 cm
30 cm squared
Find the area when then the... Length = 7 m Width = 9m
63 m squared
Find the area when the... Base= 6 cm Height=7 cm
42 cm squared
Formula for area of a square
A = L x W
or
A = b x h
True or false: When writing the answer for perimeter, we use square units?
False.
Find the area when then the... Base = 7 m Height = 12 m
42 m squared
Find the area when then the... Length = 4 cm Width = 6 cm
24 cm squared
Find the area when the... Base= 12 m Height=9 m
What is 108 m squared
Formula for area of a rectangle
A = L x W
or
A = b x h
A square has a side length of 12 cm. What is the perimeter?
48 cm
Find the area when then the... Base = 3 mm Height = 7 mm
10.5 mm squared
Find the area when then the... Length = 11 cm Width = 6 cm
33 cm squared
Find the area when the... Base= 14 km Height=19 km
What is 266 km squared
Formula for perimeter on rectangle
P = L+L + W + W
or
P = 2*(L+W)
A rectangle has a side length of 4 ft. The width is twice the size of the length. What is the perimeter?
24 feet
Find the area when then the... Base= 8 cm Height=10 cm
What is 40 cm squared
Find the area when then the... Length = 12 cm Width = 4 cm
24 cm squared
Find the area when the... Base= 5 mm Height=7 mm
35 mm squared
Formula for area of a triangle
A = (L x W)/2
or
A = (b x h)/2
An equilateral triangle has a side length of 6 in. What is the perimeter?
18 inches
Find the area when then the... Base= 12 km Height=24 km
144 km squared
Find the area when then the... Length = 21 km Width=12 km
126 km squared
Find the area when then the... Base= 8 km Height=9 km
72 kilometers squared