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Earn +20 ptsQ: If 400 feet is the diameter how long is the circumference?
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Continue Learning about Geometry
How many acres is 300 feet long by 400 feet wide?
300 by 400 feet is two and three-quarters acres
How long is 400 feet?
121,92 meter
Find the circumference of a circle if the area is 400 Pi meters?
First we have to find the radius: pi*radius2 = 400*pi square meters Divide both sides by pi and then square root both sides: radius = 20 meters 2*pi*radius or pi*diameter = circumference 2*pi*20 = 40*pi meters
If 1 gallon of paint covers 400 square feet about how many gallons of paint are needed to paint the outside of a spherical tank of diameter 20 feet?
Surface area of a sphere = 4*pi*radius2 Area = 4*pi*102 = 400*pi square feet Amount needed in gallons = (400*pi)/400 = pi (3.141592654) Just over 3 gallons will be needed.
What is the total acres if you have a parcel of land that is 400 feet wide and 400 feet deep?
400 by 400 feet = 160,000 square feet 160,000 square feet = 3.6730946 acres
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