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Find the volume of the composite solid. ( The26 cm12 cm

Find the volume of the composite solid. ( The26 cm12 cm-example-1

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The formula to calculate the volume of a cylinder is


V=\pi r^2h

The formula to calculate the volume of a hemisphere is


V=(2)/(3)\pi r^3

Hence, the volume of the composite shape can be calculated by using the formula


V=\pi r^2h+(2)/(3)\pi r^3

From the question, we have the following parameters:

r = 12/2 = 6cm (radius is half of the diameter)

h = 26cm

Substituting, using pi as 22/7, we have


\begin{gathered} V=((22)/(7)*6^2*26)+((2)/(3)*(22)/(7)*6^3) \\ V=2940.53+452.39 \\ V=3392.9\operatorname{cm}^3 \end{gathered}

The volume is given as 3392.9 cm³.

The correct option is the FIRST OPTION.

User Nellute
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