Question

LR
1.
De
2.
3.
The volume of earth must be dug out to make a well of diameter 5 m and depth 14 mis [ ]
a) 1100 m
b) 137.5 m
c) 550 m
d) 275 m
The lateral surface area and the total surface area of a cylinder with base radius 7 m and height 9 m are
respectively
[ ]
a) 396 m2, 704 m² b) 704 m², 396 m² c) 396 m, 704 m d) 704 m, 396 m
A roll of news paper of length 7000 m and thickness 0.022 cm is rolled into a solid cylinder. Then its
radius is
[ ]
a) 7 cm
b) 140 cm
c) 35 cm
d) 70 cm
The curved surface area of a cone is 670 cm and its radius is 15 cm. Then its total surface area is
a) 13770.4 cm? b) 1377.14 cm? c) 137.704 cm
d) 137704 cm (
A conical cup has a height of 21 cm and the diameter of its base is 18 cm. Then the amount of water
it can hold is
[ ]
a) 1782 cm
b) 1827 cm
c) 1876 cm
d) 1847 cm
4.
5.​

Answer 1

Answer:

275

137704

7 cm

1782

plz follow and mark brainliest if think it is correct plz