A 7 mm diameter circle is the equivalent of a circle with a 0.275-inch diameter.
The area of a circle with a 7-foot diameter is: 38.48 square feet.
The area of a 7-inch circle is: 38.48 square inches.
I assume that a 14 inch circle is a circle 14 ionches in diameter. Use the formula Area = Pi x radius of the circle X radius of the circle The radius is half the diameter. Pi is 3.14159 (appx) So the area = 3.14159 X 7 X 7 = 153.937 square inches. Or approximately 154 square inches
Circumference = pi*diameter = 21.99 inches, approx.
A circle with a diameter of 7 inches has an area of 38.48 square inches.
A circle with a 7 inch diameter has an area of 38.48451.
It depends on what you mean by a "7-inch circle". If, as is normally the case, it is a circle with a 7-inch diameter, then you've got your answer in the question. If, unusually, you mean a circle with a 7-inch radius, then the diameter is twice that - 14 inches. If, even more unusually, you mean a circle with a circumference of 7 inches, then the diameter is 7/pi = 2.228 inches.
A 36-inch diameter circle has an area of: 1,017.9 square inches.* * * * *which is 7.07 square feet.
A 7 mm diameter circle is the equivalent of a circle with a 0.275-inch diameter.
The area of a circle with a 7-foot diameter is: 38.48 square feet.
The area of a 7-inch circle is: 38.48 square inches.
area = pi*r*r r = diameter/2 r=7 7*7 = 49 49pi, or 153.9380400258998686846695257807 sq in
I assume that a 14 inch circle is a circle 14 ionches in diameter. Use the formula Area = Pi x radius of the circle X radius of the circle The radius is half the diameter. Pi is 3.14159 (appx) So the area = 3.14159 X 7 X 7 = 153.937 square inches. Or approximately 154 square inches
Circumference = pi*diameter = 21.99 inches, approx.
The radius is half of the diameter. So, if the radius is 7 the diameter is 14.
We assume the 7 inches is the diameter (D). Area = Pi/4 * D2 Area = 0.7854 * 7 * 7 = 38.4845 sq.inches (rounded to 4th decimal).