Question

0. Ashwani, a factory owner wants to thank all his workers by gifting a decorated spherical
ball. The diameter of the sphere is (2a + 5) cm.
21 cm
Each ball is to be packed in a right circular cylindrical
box which just encloses a sphere
If the height of the cylinder is 21 cm, then
1) What is the value of a ?
d) 5
C) 2
a) 8
b) 4​

Answer 1

Answer:

The value of a is 8

Step-by-step explanation:

Since the cylinder just encloses the sphere, the height of the cylinder is equal to the diameter of the sphere.

And diameter of sphere = 2a + 5

So,

2a + 5 = 21

2a = 16

a = 8

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Answer 2

Answer:

The value of a is 8

Step-by-step explanation:

diameter=(2a+5)cm

height=21cm

diameter of sphere=height of cylinder

2a+5=21

2a=21-5=16

a=16/2=8 answ