A regular square pyramid has its base edge 6 cm and height 5 cm. Then

1.	A regular square pyramid has its base edge 6 cm and height 5 cm. Then its volume is A) 36 cm3 B) 25 cm3 C) 11 cm3 D) 60 cm3
Answer» Correct option is (D) 60 cm³ Base of square pyramid is a square of edge 6 cm. \(\therefore\) Base area \(=6^2=36\,cm^2\) Height of pyramid = 5 cm \(\therefore\) Volume of square pyramid \(=\frac13\times\) Base area \(\times\) Height of pyramid \(=\frac13\times36\times5=12\times5\) \(=60\,cm^3\) Correct option is D) 60 cm³

A regular square pyramid has its base edge 6 cm and height 5 cm. Then its volume is A) 36 cm3 B) 25 cm3 C) 11 cm3 D) 60 cm3

Answer»

Correct option is (D) 60 cm³

Base of square pyramid is a square of edge 6 cm.

\(\therefore\) Base area \(=6^2=36\,cm^2\)

Height of pyramid = 5 cm

\(\therefore\) Volume of square pyramid \(=\frac13\times\) Base area \(\times\) Height of pyramid

\(=\frac13\times36\times5=12\times5\)

\(=60\,cm^3\)

Correct option is D) 60 cm³