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Strictly speaking, measuring diameter requires a unit of measurement, not just a number, so it would be 7 centimeters, 7 inches, or whatever. It might be 7 miles. Aside from that, the formula for the area of a circle is pi r2, so if the diameter is 7, the radius is 3.5, and (3.5)2 is 12.25, so we have 3.14 x 12.25 = 38.47 (rounded off to the nearest two decimal places).
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What is the area of a circle with a 7 foot diameter?
The area of a circle with a 7-foot diameter is: 38.48 square feet.
What is the area of a circle with a diameter of 14 centimeters?
Area can be expressed by the formula A=(Pi)r2, where A is the area and r is the radius.To find the radius of the circle, divide the diameter by 2.14 cm/2 = 7 cmA = (3.14159)(72)= 153.938 cm2Therefore, the area of a circle with a diameter of 14 cm is approximately 153.9 cm2.
How to find the area of a circle with a diameter of 7 inches?
Area = 1/4*Pi*d2 = 0.25*3.14*72 = about 38.465 inches2
What is the area of a circle with a 5 meter diameter?
diameter= 5m radius= diameter/2 = 5/2 =2.5m area of the circle= πr*r =22/7*2.5*2.5 =19.64....m
How do you find the area of a semi circle or quarter circle when pi is twenty two sevenths and please include an example for both semi circle AND quarter circle?
The area of a circle is pi*r2, where r is the radius. In this case, 22/7 will be used for pi. Area of a semicircle: A semicircle is half of a circle, so the area will be half of a circle: A = (1/2)*pi*r2 Example: Find the area of a semicircle with a radius of 10 meters. A = (1/2)*(22/7)*(10)2 = (1/2)*(22/7)*(100) = 1100/7 or about 157.14 square meters Area of a quarter circle: A quarter circle is a forth of a circle, so the area will be A = (1/4)*(pi)*r2 Example: Find the area of a quarter circle with a diameter of 4 inches: (Notice that the diameter is given, so the radius in this case is 2 inches:) A = (1/2)*(22/7)*(22) = (1/2)*(22/7)*4 = 44/7 or about 6.286 square inches.
What is the area of 7 inch diameter circle?
A circle with a diameter of 7 inches has an area of 38.48 square inches.
What is the area of a circle with a 7 foot diameter?
The area of a circle with a 7-foot diameter is: 38.48 square feet.
Area of a circle using 7 inches and 3.14 as pie?
A circle with a 7 inch diameter has an area of 38.48451.
7 meter diameter circle how many square meters do you have?
A 7-meter diameter circle has an area of 38.5 square meters.
What is the area of a circle with a diameter of 14 centimeters?
Area can be expressed by the formula A=(Pi)r2, where A is the area and r is the radius.To find the radius of the circle, divide the diameter by 2.14 cm/2 = 7 cmA = (3.14159)(72)= 153.938 cm2Therefore, the area of a circle with a diameter of 14 cm is approximately 153.9 cm2.
What is the diameter of a circle that's area is 153.86in squared?
The diameter is approximately 7 inches.
What is the area of a circle when the diameter is 7 mm?
Diameter of a circle is pi times the square of its radius. For a circle having a diameter of 7 mm, area = pi (3.1416) x 3.5 mm x 3.5 mm = 38.5 square millimeters.
How do you find the diameter of a circle when you know the area?
Divide the area by pi. (3.14 or 22/7) Find the square root of your answer. This will be the radius. Multiply the raduis by 2.
What is area of a 7 meter diameter circle?
The area is 38.485 square meters.
How to find the area of a circle with a diameter of 7 inches?
Area = 1/4*Pi*d2 = 0.25*3.14*72 = about 38.465 inches2
What is the area of a circle if the diameter was 14 meters?
A circle with a radius of 7 meters has an area of 153.94 square meters.
How do you find the diameter of a circle with area of 7?
Okay so you know that the area is equal to 7. So: A=7 the area for a circle is A= (pi)r2 where A is the area. so 7=(pi)r2 solve for r 7/(pi)=r2 sqrt (7/(pi))=r rationalize it [sqrt(7pi)]/(pi) if you double the radius you get the diameter. 2r=d d=2[sqrt(7pi)]/(pi)
