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Mathematics 13 Online
OpenStudy (anonymous):

I need help. will fan and medal

OpenStudy (anonymous):

Use the net to find the approximate surface area of the cylinder to the nearest square meter. A. 377 m^2 B. 484 m^2 C. 528 m^2 D. 792 m^2

OpenStudy (anonymous):

@dan815

OpenStudy (anonymous):

@Michele_Laino

OpenStudy (anonymous):

@ash_heather1

OpenStudy (anonymous):

do you want the anwser or help?

OpenStudy (anonymous):

is there a number for how long the rectangle is?

OpenStudy (michele_laino):

hint: the length of base of the rectangle, is: \(L=2 \cdot 3.14 \cdot 7=...?\) so the area of such rectangle, which represents the lateral surface, is: \(S_L=H \cdot L=11 \cdot L=...?\) now the area of each circle, is: \(S_C=3.14\cdot 7^2=...?\) so the area of the base surface, is: \(A= 2\cdot S_C=...?\) finally, the requested total surface, is: \(S_T=S_L+A=S_L+2 \cdot S_C=...?\)

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