The volume of a square pyramid whose base area is 16 cm and height 8 cm is
A) 128/3 cm3
B) 144 cm3
C) 64 cm3
D) 256 cm3
Correct Answer - (i) `432 cm^(3), 180 cm^(2), 372 cm^(2)` (ii) `2366 m^(3), 520m^(2), 1248 m^(2)` (iii) `45 m^(3), 21 m^(2), 201 m^(2)` (iv) `36m^(3), 291 m^(2), 303 m^(2)`
2 Answers 1 viewsCorrect option is (A) 128/3 cm3 Volume of pyramid = 1/3 x Base area x Height = 1/3 x 16 x 8 = 128/3 cm3
2 Answers 1 viewsCorrect option is (A) 48 cm3 Volume of pyramid \(=\frac13\times\) Area of base \(\times\) height of pyramid \(=\frac13\times18\times8=6\times8\) = \(48\,cm^3\)
2 Answers 1 viewsCorrect 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 \(=\frac13\times36\times5=12\times5\) \(=60\,cm^3\)
2 Answers 1 viewsCorrect option is (B) Circle A pyramid is a three dimensional figure with only one base and base can be any polygon but it base never be a circle.
2 Answers 1 viewsCorrect Answer - D CSA of a pyramid `=(1)/(2) XX ` Perimeter of the base `xx` Slant height.
2 Answers 4 viewsThe pyramid of biomass in sea is generally inverted because the biomass of fishes far exceeds that of phytoplankton and the number of big fishes eating the small fishes is...
2 Answers 1 views