Question

Q.1. The volume of a cube is 343cm3. Its total surface area is _______
a) 196 cm2 b) 49 cm2 c) 294 cm2 d) 147 cm2
Q.2. A rectangular tank is 3m long, 2m wide and 5m high. How many litres of water can it hold?
a) 30000 b) 15000 c) 25000 d) 35000
Q.3.If the capacity of a cylindrical tank is 1848 m3 and the diameter of its base is 14m, the depth of the tank is______
a) 8m b) 12m c) 16m d) 18m
Q.4. If each side of the cube is doubled then its volume ______
a) is doubled
b) becomes 4 times c) becomes 6 times d) becomes 8 times
Q.5. If each side of the cube is doubled then its lateral surface area ________ma

Answer 1

Step-by-step explanation:

Q1)Vol. = 343cm³

therefore side= 7cm

TSA of cube= 6(a)2

=6x49

=294cm²

Q2)vol = lxbxh

=3x2x5

=30000

Q4) becomes 4 times

Q5)