Question

What is the radius of the base of a right circular cylinder whose height is 2.8 cm and the curved surface area is 121 cm² ? ​

Answer 1

Answer:

okk

Step-by-step explanation:

the ratio of this will be 2.3and the volune will be 1612cu.cm

Answer 2

Answer:

of the base of the cylinder be 2x and its height

volume of a cylinder=πr

2

h

⇒π(2r)

2

(3x)=1617

x

3

=(

2

7

)

3

⇒x=3.5cm

r = 7 cm h = 10.3 cm.

surface area =πrh=2×

7

22

×7×10.5=462cm

2

solution