Do you know how to find the area of a circle when you know the radius ? Good! Do that.
Do you know how to find the area of a square when you know the length of the side ? Good! Do that.
Now you have two numbers ... the area of the circle and the area of the square.
The problem wants you to find the difference of these two numbers.
Do you know how to use subtraction to find the difference of two numbers ?
Good! Do that.
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The radius is 30 inches.
Area of a circle = pi*radius2 The radius of the circle will be 1/2 the size of the length of a side of the square.
Radius: square root of (12.56/pi) = 2 rounded to nearest integer
The formula for the area of a circle is pi x radius2. The radius is half the diameter, and the diameter of an inscribed circle is the same as the length of a side of the square.The formula for the area of a circle is pi x radius2. The radius is half the diameter, and the diameter of an inscribed circle is the same as the length of a side of the square.The formula for the area of a circle is pi x radius2. The radius is half the diameter, and the diameter of an inscribed circle is the same as the length of a side of the square.The formula for the area of a circle is pi x radius2. The radius is half the diameter, and the diameter of an inscribed circle is the same as the length of a side of the square.
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