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Area of a circle is = Pi * Radius Squared.

Depending how accurate you want to be you might need a calculator for Pi to more places but using Pi = 3.14

3.14 * 7 * 7 = 153.86 you should supply some units. If the 7 was in m this answer is in m squared.

Circumference is generally = 2 * Pi * Radius

2 * 3.14 * 7 = 43.96 again if the 7 is in meters then the answer is in m.

Q: Circumference and area of a circle if the radius is 7?

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Circumference is 2π times the radius. So, for 14π the radius is 7. Area is πr2, so the area of a circle with radius 7 is 72π, or 49π (153.93).

Radius of circle: 44/2*pi = 7 rounded Area of circle: pi*7 squared = 154 square cm rounded

The radius is 7 inches.

The area of a circle with a radius of 7 cm is: 153.9 cm2

Circumference = 2 pi R = 14 pi = 43.9823 cm (rounded)

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Circumference is 2π times the radius. So, for 14π the radius is 7. Area is πr2, so the area of a circle with radius 7 is 72π, or 49π (153.93).

If a circle has a circumference of 43.98 the radius is: 7 (6.999).

C=14pi A= 98pi

The radius of the circle is 7.

Circumference: 14*pi mi Area: 49*pi square mi

Use the formulae for the area and circumference of a circle, replacing the symbol for the radius or the diameter with the known radius or diameter. As a reminder, the radius is 1/2 the diameter.Circumference = pi x diameter area = pi x radius squared

Circumference of a circle = 2*pi*radius or diameter*pi

The circumference of a circle with radius of 7 km is 44.0 km (to the nearest tenth), and the area of a circle with radius of 7 km is 153.9 km (to the nearest tenth).C = 2 pi RA = pi R2

Use the formulae for the area and circumference of a circle, replacing the symbol for the radius or the diameter with the known radius or diameter. As a reminder, the radius is 1/2 the diameter.Circumference = pi x diameter area = pi x radius squared

The circumference is about 43.98 inches. The circumference of a circle is diameter (radius x2) x pi (3.14).

Circumference=πd thefore it is 44

circumference of a circle = 2*pi*radius or diameter*pi