50.24... the formula to calculate the area of a circle - is Pi x radius x radius Therefore 3.14 x 4 x 4 = 50.24
area of a circle is pi x radius^2 so... pi x 4^2 = about 50 cm
you half the diamater to get the radius, then you square the radius. Then you times it by 3.14. Always. example. Diameter=4cm then radius =2cm squared=4cm 4x3.14=12.56
Method to find area of a circle is: The area of a circle is its radius squared times pi. Assuming the pipe has a diameter of 4cm: radius = 2 cm Circumference = 12.5664 cm Area = 12.5664 cm2
When you try to figure out an area of a circle, you square the radius, then multiply it by pi to get the area of a circle. A radius square is radius x radius, or radius squared.
A circle with a radius of 4 cm has an area of 50.27 square cm.
A circle with a radius of 4 cm has an area of 50.27 square cm.
Area = ~50.27 cm2
50.24... the formula to calculate the area of a circle - is Pi x radius x radius Therefore 3.14 x 4 x 4 = 50.24
radius=4cm diameter=8cm *radius is half the diameter
area of a circle is pi x radius^2 so... pi x 4^2 = about 50 cm
It is: 16*pi square cm
you half the diamater to get the radius, then you square the radius. Then you times it by 3.14. Always. example. Diameter=4cm then radius =2cm squared=4cm 4x3.14=12.56
The circumference of a circle with a radius of 4cm is: 25.13 cm (r x 2 x pi)
its when you leave the answer with ╥ in it e.g. if they go find the area of a circle (Pi.r.r or squared) you find the radius say 4cm then you put in in the formula so piX4X4 so you then find out 4X4 which is 16 so the area of a circle with a radius of 4cm in terms of ╥ is 16╥
4cm
Area = pi*r2 Area = pi(4 cm)2 = 50 cm2 =======