If the height of the pyramid is $4 c m$ , find the volume of the composite solid, in $c m^{3}$

50 c m^{3}

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40 c m^{3}

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60 c m^{3}

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70 c m^{3}

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Solution

The correct option is A $50 c m^{3}$
REF.Image

Height of Pyramid is 4 cm.

Volume = volume of (cuboid + pyramid)

$= 5 \times 3 \times 2 + \frac{5 \times 3 \times 4}{3}$

$= 30 + 20 = 50 c m^{3}$

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