Question

MENSURATION
Q-1 What is the area of the circular sheet whose circumference is 44 cm. (a) 154 cm2 (b) 140 cm2 (c) 150 cm2
Q-2 How will the area of a square change when its side is doubled?
Q-3 Height of a cylinder is four times the radius of its base, then the volume of the cylinder is ______.
Q-4 A godown is in the form of a cuboid with dimensions 80 m × 50 m × 45 m. How many cuboidal
boxes of dimensions 0.4 m × 0.5 m × 0.9 m can be stored in it?
(a) 10000 (b) 1000 (c) 1000000 (d) 100
Q-5 A barn with a flat roof is cuboidal in shape of breadth 10 m, length 15 m and height 5 m. It is to be
painted inside on the wall and on ceiling but not on the floor. Find the total area to be painted.
Q-6 The area of a trapezium is 400 cm2, the distance between the parallel sides is 16 cm. If one of the
parallel sides is 20 cm, then the length of the other side is ______.
Q-7 At a Navratri mela, a stall keeper in one of the food stalls has a large cylindrical vessel of base radius
15 cm filled up to a height of 32 cm with orange juice. The juice is filled in small cylindrical glasses
of radius 3 cm up to a height of 8 cm. How many glasses of juice did he sell?
(a) 10000 (b) 1000 (c) 1000000 (d) 100
Q-8 Volume of two cylinders is same. If the ratio of their radii is 2:3 then the ratio of their heights is
______.
Q-9 The area of a rhombus is 16 cm2. If the length of one diagonal is 4 cm, find the length of the other
diagonal.
Q-10 ABCDE is a pentagonal park in which DE = DC, AB = BC = CE = EA = 25 m and its total height is 41 m. Find the area of the park.
(a) 815 m2 (b) 825 m2 (c) 835 m2 (d) 845 m2
(d) 100 cm2

Answer 1

Answer:

1 , ans . 154

Given ,

circumference of Circle = 44

2πr = 44

r = 44*7/2*22

r = 7

area of Circle = πr2

= 22/7*7*7

=154