the formula for the area of a circle is A=pi x r2. r=the radius, and the radius is half of the diameter, which in this case, is 10. so the radius is 5. now you just plug it in. A=pi x 5 squared. now A=pi x 25 so the answer is 25pi. or you could do it to where you set pi as 3.14. then your answer would be 3.14x25 which is 78.5, so A=78.5 some teachers like it when you set pi to 3.14, and others like you to leave it just as pi. i personally like to leave pi as it is because its less work, but i don't know which one you needed...
The area of a circle with the diameter of 3m is 7.069 m2
The area of a circle with diameter of 4.9 is 75.43 units2
The diameter of a circle whose area is 200.96 is: 16
The area of a circle with a diameter of 6.5 is: 33.18 square units.
If the diameter of a circle is 37.3 meters its area is: 1,093 m2
The area of a circle with a diameter of 10 centimeters is: 78.54 cm2
The area of a circle that has a 10 ft diameter is: 78.54 square feet.
The area of a circle whose diameter is 10 cm is: 78.54 cm2
The area of a circle is A = pi times diameter² / 4. Given diameter d = 10 inches. Area A = 78.5398 inches².
A 10-inch circle has an area of 78.54 inches2
Area of the circle is about 10 square units
78.53981634 square units
If 10 diameter means 10 ft diameter then the area is 78.54 sq.ft.
A circle that has an area of 78.5 square feet has a diameter of 10 feet.
Area of the circle = pi*radius2 = pi*52
Using 3.14 as Pi the area of circle is: 78.5
Using 3.14 as Pi the area of circle is: 78.5