Question

To make the teaching, learning process easier, creative and innovative. A teacher clay in the classroom to teach the topic mensuration. She thought this method of teaching is more interesting, leave a long-lasting impact. She forms a cylinder of radius=6cm and height=8cm with
the clay then she moulds the cylinder into a sphere and asks some question to Student {useπ=3.14}.

(1) The radius of sphere so formed is:
(a) 6cm
(b) 7cm
(c) 4cm
(d) 8cm

(2) The volume of the sphere so formed is;
(a) 902.32cm cube
(b) 899.34cm cube
(c) 904.32cm cube
(d) 999.33cm cube

(3) The ratio of the volume of a sphere to the volume of a cylinder is;
(a) 1 : 2
(b) 2 : 1
(c) 1 : 1
(d) 3 : 1

(4) The total surface area of the cylinder is;
(a) 525.57cm square
(b) 557.55cm square
(c) 534.55cm square
(d) 527.52cm square

(5) The total surface area of a sphere (approximately)is;
(a) 450cm square
(b) 452cm square
(c) 460cm square
(d) 465cm square​

Answer 1

Answer:

1)6 cm 2)D 3)A 4)B QQWWEFFGHY