3 years ago

Need help with Math homework

Mathematics

1 answer:

sveticcg [70]3 years ago

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Answer:

sorry but it's not clear can you again post it

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PQRS is a diameter of a circle of radius 6cm. the lengths PQ , QR , and RS are equal .Semicircles are drawn on PQ and QS as diam

velikii [3]

$r=6
\\d=2r=12
\\PQ=QR=RS= \frac{d}{3} = \frac{12}{3} =4
\\
\\P= \frac{1}{2}\times 2r\pi+\frac{1}{2}\times 2\times QR\times\pi+\frac{1}{2}\times 2 \frac{PQ}{2} \pi
\\
\\P=r\pi+QR\times\pi+\frac{PQ}{2} \pi
\\
\\P=6\pi+4\pi+\frac{4}{2} \pi
\\
\\P=12\pi$