The formula for area of a circle is pi*r*r. If the circle is 4 cm across then the radius is 2 cm. pi times 2 times 2 is 4pi. Many people use 3.14 as pi. 4 time 3.14 is 12.56 sqcm.
4 cm radius = Area of 50.26548 sq. cm.
This indicates a radius of 4 cm, in which case the area of the circle is: 50.27 square cm
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.
The area of a circle (in square hectometers) if the diameter is 4 cm is: 0.001257 hectometers2
Area circle = π × radius² Area smaller circle = π × (4 cm)² = 16π cm² Area larger circle = π × (10cm)² = 100π cm² → probability inside smaller circle = area_smaller_circle/area_larger_circle = 16π cm²/100π cm² = 16/100 = (4×4)/(4×25) = 4/25.
A circle with a radius of 6 cm has an area that is about 113.1 cm. 3/4 of that is 84.825 cm
The area is about: 50.27 square centimeters.
A=Pi(r)2 - A circle with a radius of 4 cm has an area of 50.27 square cm
12.57 square cm.
Area of a circle = pi x (radius)2So, if the radius is 4 cm, the area is pi x 42= 50.265 cm2
Using 3.14 as Pi the area of circle is: 50.24