If a regular square pyramid has a base of side $8$ cm and height of $30$ cm, then its volume is

120

c.c

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240

c.c

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640

c.c

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900

c.c

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Solution

The correct option is B $640$ c.c
Volume of square pyramid $= \frac{1}{3} \times$ $A r e a o f t h e b a s e$ $\times h e i g h t$
$= \frac{1}{3} \times {(8)}^{2} \times 30 = 640 c m^{3}$

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If a regular square pyramid has a base of side 8 cm and height of 30 cm, then its volume is

The correct option is B 640 c.cVolume of square pyramid=13× Area of the base × height =13×(8)2×30=640 cm3

If a regular square pyramid has a base of side $8$ cm and height of $30$ cm, then its volume is

The correct option is B $640$ c.c
Volume of square pyramid $= \frac{1}{3} \times$ $A r e a o f t h e b a s e$ $\times h e i g h t$
$= \frac{1}{3} \times {(8)}^{2} \times 30 = 640 c m^{3}$