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What shape is the circumference? A circle, ellipse, any other 2-dimensional polygon,
Assuming you mean a circle.
C = 2 pi r
A = pi r^(2)
Hence r = C/ (2 pi)
Substitute
A = pi (C/(2 pi)^(2))
Cancel down by 'pi'
A = C^(2) / 4pi
Substitute
A = 80^(2) / (4 pi)
A = 6400 / (4 pi)
A = 1600/pi
A = 509.295.... sq.ft.
What else can I help you with?
How many 12x12 inch pavers for 10x8 foot patio?
12 time 12 inches = 1 square foot (as there are 12 inches in a foot) 10 times 8 feet = 80 square feet 80 square feet divided by 1 square foot = 80 pavers.
Which has a greater area a circle with circumference of 40.5 feet orange a circle with radius 80 inches?
A circle with a radius of 80 inches has an area of 139.6 square feet A circle with a circumference of 40.5 feet has an area of 130.5 square feet
How many square foot is 32 foot by 80 foot?
That's a total of 2560 square feet.
8 foot by 10 foot equals to how many square feet?
8' x 10' = 80 square feet
What is the area of an 80 foot diameter in square feet?
Area of a circle in square feet = pi*radius2
How many 12x12 inch pavers for 10x8 foot patio?
12 time 12 inches = 1 square foot (as there are 12 inches in a foot) 10 times 8 feet = 80 square feet 80 square feet divided by 1 square foot = 80 pavers.
Which has a greater area a circle with circumference of 40.5 feet orange a circle with radius 80 inches?
A circle with a radius of 80 inches has an area of 139.6 square feet A circle with a circumference of 40.5 feet has an area of 130.5 square feet
How many square foot is 32 foot by 80 foot?
That's a total of 2560 square feet.
What is the circumference of an eighty foot diameter circle?
Circumference = Pi x d: 3.14 x 80 = 251.2 feet
8 foot by 10 foot equals to how many square feet?
8' x 10' = 80 square feet
How many square feet in an 40 foot by 80 feet?
= 40 x 80 = 3200 sq feet
How many square feet in 20 foot by 80 foot house?
A=lw A=20*80 A=1600 feet2
What is the area of an 80 foot diameter in square feet?
Area of a circle in square feet = pi*radius2
How many square feet is a 8 by 10 foot room?
8 ft x 10 ft = 80 ft2 or 80 square feet.
What is 8ft x 10ft in square meters?
To convert square feet to square meters, you can use the conversion factor where 1 square foot is approximately 0.092903 square meters. The area of 8 feet by 10 feet is 80 square feet. Therefore, 80 square feet is approximately 7.43 square meters (80 x 0.092903).
What is 80 sq ft in inch?
There are 144 inches in a square foot so, 144 x 80 is 11520 inches in 80 square feet.
How big is a pool that is 80 square feet?
An eighty square foot pool is equal to 7.432 square metres
