It is given that the circumference of the circle is 19.5 inches. Let the diameter is d inches .
And the formula of circumference is
Substituting the value of C, we will get
When the diameter increased by 3, then the circumference is
And the circumference , when diameter is increased by 3 is 29 inches .
Answer:
251.20 cm square
Step-by-step explanation:
As given in figure
height of cylinder = 2 cm
radius of cylinder = 8 cm
lateral surface area of cylinder is given by =
where r is the radius and l is the height
Therefore, lateral surface area of given cylinder
area of base is give by
since there is only one base area of that base
=
Thus,
Total surface area of open cylinder = 50.24 + 200.96 = 251.20 cm square