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mrs_skeptik [129]
3 years ago
15

I think it’s A am I right

Mathematics
2 answers:
Korolek [52]3 years ago
6 0

\bf \textit{surface area of a cylinder}\\\\ SA=2\pi r(h+r)~~ \begin{cases} r=radius\\ h=height\\ ------\\ r=\stackrel{mm}{4}\\ h=\stackrel{cm}{1.5}\\ ~~~~\stackrel{mm}{15} \end{cases}\implies SA=2\pi (4)(15+4) \\\\\\ SA=8\pi (19)\implies SA=152\pi

Mandarinka [93]3 years ago
4 0

Pi(r)(r)(2) + pi(diameter)(height)

3.14(4)(4)(2)+ 3.14(8)(1.5)

138.16

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