Formulas
Formula for the parallelogram
Base times height
Find the area when then the... Length= 7m Width= 7m
49m2
Find the area when the... Base= 6cm Height=7cm
42 cm squared
Find the area of a triangle when... Base= 5cm Height=12cm
30cm2
What is the circumference of a circle with a Radius of 6ft? (answer to the first decimal point)
37.6ft
Formula for area of a triangle
1/2BxH or BxH divided by 2
Find the area when then the... Length= 4in. Width=6in
24 inches2
Find the area when the... Base= 12in. Height=9in.
What is 108in. squared
Find the area when... Base= 7in Height=12in
42 inches2
What is the circumference of a circle with a Radius of 16ft? (answer to the first decimal point)
100.5 ft
Formula for area of a rectangle
BxH
Find the area when then the... Length= 11.65cm Width=6.2cm
72.23 cm2
Find the area when the... Base= 14ft. Height=19ft.
What is 266 ft. squared
Find the area when ... Base= 3ft. Height=7ft
10.5 ft.2
What is the circumference of a circle with a Diameter of 10ft? (answer to the first decimal point)
the31.4ft
Formula for perimeter on rectangle
side + side + side + side
Find the area when then the... Length= 42cm Width=26cm
1092cm2
Find the area when the... Base= 5.74in Height=7.9in
45.346 inches squared
Find the area when ... Base= 8cm Height=10cm
What is 40cm2
What is the circumference of a circle with a Diameter of 23.8ft? (answer to the first decimal point)
74.7ft
Formula for circumference of a circle
2 x 𝜋 x R
Or
𝜋 x D
Find the area when then the... Length= 21.64ft Width=12.75ft
275.91ft.2
Find the area when then the... Base= 8km Height=9km
72 kilometers squared
True or false: The area of a triangle with a
Base= 12 ft. Height= 24ft is 288ft2
FALSE; it is 144 ft.2
What is the circumference of a circle with a Radius of 27ft? (answer to the first decimal point)
169.6ft.