Question

20. Prapti was doing an experiment to find the radius ‘r’ of the base of
the cylinder. For this she took a sphere of radius 3cm and melted it
to recast into a right circular cylinder of height 3cm (as shown in the
figure).
1. What is the surface area of sphere?
a) 609 2
b) 610 2
c) 616 2
d) 619 2
2. What is the height of the sphere?
a) 7cm
b) 6cm
c) 5cm
d) 3cm
3. How many times the volume of the sphere is equal to volume of cylinder?
a) 1
b) 2
c) 3
d) 4
4. What is the radius of the cylinder (approximately) ?
a) 2 cm
b) 2.5 cm
c) 3 cm
d) 3.5cm
5. How many surfaces a right circular cylinder have?
a) 0
b) 1
c) 2
d) 3

Answer 1

Answer:

$\sf\fbox{1,000}$