Using 3.14 as Pi the area of circle is: 113.03999999999999
Polly Rice
perimeter of a circle = circumference = pi x diameter perimeter = 3.1416 x 12 = 37.7 cm
The area is ~452.3 cm2
The area is pi*radius2 = 452 cm2, approx.
C=3.14D C=12x3.14 C=37.7+12=49.7
Circumference: 12*pi = 37.699 cm rounded to three decimal places
The circumference of a circle if the diameter is 12cm is 37.7cm
Area of circle is pi. r.r. Here r = diameter/2. r = 6 cm. area = 22/7 x 6 x 6 = 113.14 cm sq.
12 cm A diameter is twice as long as the radius of a circle. D = 2r D = 2(6cm) = 12cm
12pi cm
the diameter of a circle is double the radius so if the radius is 12 cm then the diameter is 24 cm
The diameter of circle A is 12cm so its radius must be 6cm.
perimeter of a circle = circumference = pi x diameter perimeter = 3.1416 x 12 = 37.7 cm
The area is ~452.3 cm2
circumference = π x diameter ⇒ diameter = circumference ÷ π = 12 cm ÷ π ~= 3.8 cm
Circumference = pi x diameter. So the circumference of a circle with diameter 12 cm = pi x 12 = 37.7 cm (1 decimal place.)
The area is 113.1 square cm.
C = d x pi 37.68 / 3.14 = d your diameter is 12cm