Question

WATER TANKS

Mahavir went to a shop to buy water tanks . Two types of

water tanks are available in the shop with the same price.

One is cubical in shape of dimensions 1mx 1m x 1m.

Another is in cylinderical shape of diameter 1m and height

1m.
i Find the volume of cubical tank.

a)1m3

b) 3m3

c) 11m3

d)4m3



ii Find the volume of cylindrical tank.

a)0.785 m3

b) 3.845m3

c) 7.11m3

d)4.24m3



iii Formula for finding total surface area of cylinderical tank is

a)2 πr

2h b)2πrh c) 4πr

2h d)2πr

(h+r)



iv How much tarpauline is required to cover a cuboidal tank of

length 2m, breadth 4m and height 6cm.?

a)80 cm2

b) 88 cm2

c)44 cm2

d)40 cm2





v How much is the curved surface area of the cylinderical tank

with diameter 2m and height 7m ?

a)12 πcm2

b) 88π cm2

c)4π cm2

d) 14πcm2

​

Answer 1

Answer:

1) 1m^3

2)0.785

3)2πr

4)5) please check the units

Step-by-step explanation:

1)1×1×1=1m^3

2)π/4×1^2×1=0.785

3)2πr