Question

Find the area of a circle of diameter 8.4m​

Answer 1

Area of circle = pie r^2

d = 8.4 m

r = 4.2 m

$\pi \: r {}^{2} \\ 22 \div 7 \times 4.2 \times 4.2 \\ 22 \times 0.6 \times 4.2 \\ 22 \times 2.52 \\ 55.44 \: {m}^{2}$

Area of circle = 55.44 m^2

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