SOLUTION: What is the area and the circumference of the circle with a 28yd diameter?
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Question 336371: What is the area and the circumference of the circle with a 28yd diameter?
Found 2 solutions by jim_thompson5910, stanbon:
Answer by jim_thompson5910(35256) (Show Source): You can put this solution on YOUR website!
If the diameter is , then the radius is yards. So
Area:
Start with the area of a circle formula.
Plug in .
Replace with (note: Use more digits of to get better accuracy).
Square to get .
Multilpy and to get (this figure is approximate).
Round to the nearest thousandth.
So the area of the circle is roughly 615.752 square yards.
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Circumference:
Start with the circumference of a circle formula.
Plug in .
Replace with (note: Use more digits of to get better accuracy).
Multiply 2 and to get .
Multiply and to get .
So the circumference of a circle with a radius of yards is about yards.
If you need more help, email me at jim_thompson5910@hotmail.com
Also, feel free to check out my website.
Jim
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
What is the area and the circumference of the circle with a 28yd diameter?
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Perimeter = (pi)d = 28(pi) = 87.96.. yrds
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Area = (pi)r^2 = (pi)*14^2 = 196pi = 615.75 sq. yds
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Cheers,
stan H.
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