Question

Find the circumference and area of a circle with radius 7 m. Use the value 3.14 for pie, and do not round your answers

Answer 1

circumference (c) = 43.96cm

Area (A) = 615.44cm²

Explanation:

Here,

Radious (r) = 7 cm

circumference (c) =
`2\pi r`

= 2×3.14×7

=43.96cm

Area (A) =
`4\pi r^(2)`

= 4×3.14×7²

=12.56×49

= 615.44cm²

Answer 2

area:153.86m²

circumfrence:43.96m

Explanation: