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luceridiaaz
28.06.2019 •
Mathematics
What is the approximate surface area of the cylinder 3mm 16mm (use 3.14 for π)a. 301.44mm^2b. 357. 96mm^2c. 339.12mm^2d. 370.52mm^2
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Ответ:
The formula of a Surface Area of a cylinder:
r - radius
H - heihgt
We have r = 3mm and H = 16mm. Substitute:
![S.A.=2\pi(3)^2+2\pi(3)(16)=2\pi(9)+2\pi(48)=18\pi+96\pi=114\pi\ mm^2\\\\\pi\approx3.14\to S.A.\approx114\cdot3.14=357.96\ mm^2](/tpl/images/0025/4916/0f4f6.png)
B. 357.96 mm^2Ответ:
answer:
.09
Step-by-step explanation: