Question

Surface area of a right circular cylinder is 4.4 metre square if the radius of the base of the cylinder is 0.7 find its height

Answer 1

Answer:

0.3

Step-by-step explanation:

2πr(h+r)=4.4

or, 2r/7(h+r)=4.4/22=0.2

or, r/7(h+r)=0.2/2=0.1

or, 0.7/7(h+0.7)=0.1 [ r=0.7m]

or,0.1(h+0.7)=0.1

or, h+0.7=1

or, h=1-0.7=0.3

*** Its hight is 0.3 metre.

Answer 2

Answer:

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