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We could say the circumference of the circle is 15 feet and you want the area. The formula for area of a circle is usually given as Pi times the radius squared but we don't have the radius ( or at fist it seems we don't) The circumference is 2x Pi x radius and this is 15 so the radius is 15/2Pi Now we have what we need to use the formula. The area is Pix (15/2Pi)^2=15^2/4Pi This is 225/Pi and using 3.14 as an approximation to Pi the are is about 17.914 which we can round to 18 square feet if you want.
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Earn +20 ptsQ: If a circle is 15ft around how many sq ft is it?
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How many square feet are in a 30 foot diameter circle?
The formula is pi*r^2, 30/2 is 15ft. 15x15x3.14159 is 706.86 sq ft
How many sq ft are there in a room that is 30ft by 15ft?
450
How many square feet in a 17 ft by 15 ft ft room?
17ft x 15ft = 255 ft2
What is the perimeter of a room 15 ft long and 12.5 ft wide?
15ft+12.5ftft+15ft+12.5ft=55ft P=55ft
What is the answer to 15ft 2in plus 32 ft 7in?
15ft + 32ft = 47 ft2in + 7in = 9 inAnswer: 47 ft 9 in
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