r = 7
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
If a circle has a circumference of 43.98 the radius is: 7 (6.999).
Area of a circle is (pi) x (radius)Â². So how do you want to approximate pi: We could choose 22/7, for example. So (15 in)Â² = 225 inÂ², then multiply by 22/7 to get 4950/7 inÂ², or 707 1/7 inÂ².
153.94 square meters
The radius is 7 meters.
A circle with a radius of 7 meters has an area of 153.94 square meters.
Radius of circle: 14/2 = 7 meters
The area of a circle with a radius of 7 cm is: 153.9 cm2
The formula for an area of a circle is the greek symbol "pi" times the radius squared. A = π * r2 r = radius π = 3.14 Now, your radius is given to you in millimeters. Generally answers are given in meters. 7 mm (millimeters) is equal to .007 m (meters).
The diameter of a circle is twice the radius. When the diameter is 7 metres, the radius is 3.5 metres.
The suface area of a sphere with a radius of 7 meters is 615.75m2
The radius are 7 centimeters and the area are 153.93804002589985 square centimeters.
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).
Area of any circle = pi*radius squared
The relationship between the radius and area of a circle is as follows: Area of circle = 3.14 x Radius x Radius or 22/7 x Radius x Radius