1 Answer

Sinandro · Answer 1 · 2023-10-14T16:31:01+0000

The circumference C of a circle with diameter d is given by:

$C=\pi d$

Substitute d = 80 and π ≈ 3.14 into the equation:

$\begin{gathered} C=3.14*80 \\ C=251.2\text{ cm} \end{gathered}$

The area A of a circle with diameter d is given by:

$A=(\pi d^2)/(4)$

Substitute d = 80 and π ≈ 3.14 into the equation:

Therefore, the required circumference is 251.2 cm

Therefore, the required area is 5024 cm²

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