Question

Find the perimeter and area of semicircle of radius 10.5cm

Answer 1

Answer:

$peri meter \: = 3\pi \: r \\ 2 \times 10.5 \times 22 \div 7 \\ 33cm \\ area \: is \: \half pi \: r2 \\ 22 \div 7 \times 10.5 \times 10.5 divide by 2 \\ 66 \times 10.5 \\ 346.5cm2$

Step-by-step explanation:

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Answer 2

Answer:

perimeter =33 cm and area =173.52 cm^2

Step-by-step explanation:

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