Question

Find the area and circumference of a circle with the diameter 8ft use value 3.14 for pie do not round the answers

Answer 1

a) The area of a circle is given by the formula:

$A=\frac{\pi\times d^2}{4}$

Where A is the area, π=3.14 and d is the diameter=8 ft.

By replacing values:

$A=\frac{3.14\times(8ft)^2}{4}=\frac{3.14\times64ft^2}{4}=50.24ft^2$

b) The circumference of a circle is given by:

$C=\pi\times d$

Where C is the circumference, π=3.14 and d is the diameter=8 ft.

By replacing values:

$C=3.14\times8ft=25.12ft$