Question

what is the area of a circle with a radius of 9.4cm

Answer 1

$A \\ = \pi r ^{2} \\ = 3.14 \times {9.4}^{2} \\ = 277.4504$

Answer : Area = 277.45cm^2

Hope this helps. - M

Answer 2

$\mathtt{S=\pi*r^2}\\\mathtt{=\pi*(9,4)^2}\\\mathtt{=\pi*88,36}\\\mathtt{=if \pi=3\Rightarrow\,265,08}\\\mathtt{=if \pi=3,14\Rightarrow\,277,4504\,cm^2}$