1. A solid figure whose base is a plane polygon and sides an triangles that meet in a common vertex is known as
(A) cube
(B) pyramid
(C) frustum of a pyramid
(D) None of these
2. If the base of pyramid is hexagon, the pyramid is called
(A) triangular pyramid
(B) square pyramid
(C) hexagonal pyramid
(D) pentagonal pyramid
3. If the base of pyramid is square, the pyramid is called
(A) square pyramid
(B) hexagonal pyramid
(C) triangular pyramid
(D) Rectangular pyramid
4. If area of base of pyramid is ‘A’ and height ‘h’ then volume of pyramid
(A) 1/3Ah
(B) 1/2Ah
(C) 1/6Ah
(D) Ah
5. Volume of a pyramid whose area of base 6a² and height ‘h’ is
(A) 3a²h
(B) 2a²h
(C) 1/3a²h
(D) a²h
6. Lateral surface area of regular pyramid if perimeter of base is P and slant height ‘l’ is
(A) 1/2Pl
(B) 1/3Pl
(C) P
(D) 1/6Pl
7. The length of median through vertex (apex) of any lateral surface of a regular pyramid is
(A) length of diagonal
(B) axis
(C) height
(D) slant height
8. Volume of frustum of pyramid is
(A) 1/3h[A₁ + A₂ + √(A₁A₂)]
(B) 1/2h[A₁ + A₂ + √(A₁A₂)]
(C) 1/3h[A₁ + A₂ + √(A₁A₂)]
(D) h[A₁ + A₂ + √(A₁A₂)]
9. Each of the side face of frustum of the pyramid is a
(A) triangle
(B) rectangle
(C) trapezium
(D) square
10. If P₁ and P₂ are perimeters of base and top of frustum of pyramid respectively then lateral surface area is
(A) 1/2P₁P₂
(B) 1/2(P₁ + P₂)h
(C) 1/2(P₁ + P₂)²
(D) 1/2(P₁ + P₂)/3