Answer:
2a). Height = 2 cm
2b). Surface area = 395.84 cm²
Step-by-step explanation:
2a). Volume of the cylinder = 308 cm³
Radius of the base of the cylinder = 7 cm
Formula to get the volume of a cylinder = πr²h
308 = π(7)²h
h = [tex]\frac{308}{49\pi }[/tex]
h = 2 cm
Therefore, height of the cylinder will be 2 cm.
2b). Formula to calculate the surface area of the cylinder = [tex]2\pi r(r + h)[/tex]
By substituting the values in the given formula,
S.A. = 2π(7)(7 + 2)
= 395.84 cm²
Therefore, Surface area of the cylinder is 395.84 cm².
