Question

Rearrange the formula A= 2πr(r+h) so that h becomes a new subject. Find h, when π= 22/7 & r= 7​

Answer 1

Answer:

• Rearrange the formula A= 2πr(r+h) so that h becomes a new subject. Find h, when π= 22/7 & r= 7

Step-by-step explanation:

• A= 2πr(r+h)
• Find h, when π= 22/7 & r= 7

Answer 2

Answer:

Correct option is

B

h=

2πr

s−2πr

2

Total Surface area S=2πrh+2πr

2

Rearranging,

2πrh=S−2πr

2

Dividing both sides by 2πr,

h=

2πr

S−2πr

2