Answered

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10 ydFind the surface area of the closed hemisphere.Enter your answer in terms of A and rounded to thenearest tenth.The surface area is ]# yd? or approximatelyyd?

10 YdFind The Surface Area Of The Closed HemisphereEnter Your Answer In Terms Of A And Rounded To Thenearest TenthThe Surface Area Is Yd Or Approximatelyyd class=

Sagot :

We have the following:

[tex]A=2\cdot\pi\cdot r^2[/tex]

we have that the radius is half the diameter, therefore

[tex]\begin{gathered} r=\frac{d}{2}=\frac{10}{2} \\ r=5 \end{gathered}[/tex]

replacing:

[tex]\begin{gathered} A=2\cdot\pi\cdot5^2 \\ A=50\pi\cong157 \end{gathered}[/tex]

The surface area is 50*pi yd^2 or approximately 157 yd^2

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