4m
Circumference = 2*pi*r = 50.265 metres
The circumference is approximately 50.27m (C = 2*Pi*r)
Area: A = pi x r2 A = 3.14 x (8m)2 A = 200.96m2 Circumference: C = 2 x pi x r C = 2 x 3.14 x 8m C = 50.24m
If that's the radius, use the standard formula for the volume of a sphere.If that's the diameter, divide it by 2 to get the radius; then you can use the standard formula for the volume of a sphere.
the radius of a circle is r
Area = 201 m2
Circumference = 2*pi*r = 50.265 metres
The circumference is approximately 50.27m (C = 2*Pi*r)
Approximately 50.26m, because circumference is equal to diameter times pi (or 3.1415). Or twice the radius times pi.
The formula for the area of a circle is A = pi*r2, where r is the radius of the circle. So, plugging r = 8m into the formula gives: A = pi*82 = pi*64 This is approximately 201.06193 square meters.
Area: A = pi x r2 A = 3.14 x (8m)2 A = 200.96m2 Circumference: C = 2 x pi x r C = 2 x 3.14 x 8m C = 50.24m
If 8m is its radius then the volume of the sphere is: 4/3*pi*8^3 = 2145 cubic m rounded
If that's the radius, use the standard formula for the volume of a sphere.If that's the diameter, divide it by 2 to get the radius; then you can use the standard formula for the volume of a sphere.
the radius of a circle is r
The radius of a circle is half the circle's diameter
Radius of a circle= Perimeter of the circle/2*pi Radius is half the diameter Radius is the length of a straight line from the center point of the circle to the edge of the circle.
The distance from the center of a circle to any point on the circle is called the radius of the circle. The radius is a line segment that starts at the center of the circle and ends at any point on the circle. It is always a straight line and is always perpendicular to the circumference of the circle. The radius is half the diameter of the circle, which is the distance across the circle through the center. The diameter of a circle is always twice the length of the radius. My recommendation ʜᴛᴛᴘꜱ://ᴡᴡᴡ.ᴅɪɢɪꜱᴛᴏʀᴇ24.ᴄᴏᴍ/ʀᴇᴅɪʀ/372576/ꜱᴀɪᴋɪʀᴀɴ21ᴍ/