256 pi cm2
16cm
Using 3.14 as Pi the area of circle is: 200.96
SA = 3,217 cm2
The diameter is twice the radius and so 2 times 16 = 32cm
64 pi sqcm
64 pi ie just over 201 sq cm
16cm
Using 3.14 as Pi the area of circle is: 200.96
The area of a full circle is pi x R squared where R = RADIUS The area of a semi circle is half of that, or pi x R squared/2
The diameter of a circle is the length of a straight line from a point on the edge of the circle passing through the center of the circle and onto a point on the opposite edge of the circle. The radius of a circle is the length of a straight line from the center of a circle to a point on the edge of the edge of the circle. So the radius of a circle is half its diameter, in this case 8cm.
R 16cm is to diameter
SA = 3,217 cm2
The diameter is twice the radius and so 2 times 16 = 32cm
64 pi sqcm
The area of a circle with a radius of 14.4 is 651.4
The radius of a circle with the area of 36 is 3.385
Area of a circle = pi*radius squared