Answer:
see explanation
Step-by-step explanation:
(1)
The volume (V) of a cylinder is calculated using the formula
V = πr²h ( r is the radius and h the height )
here r = 4 and h = 12, hence
V = π × 4² × 12 = π × 16 × 12 = 192π ≈ 603.2 cm³
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(2)
The volume (V) of a cuboid is calculated using the formula
V = lbh ( l is length, b is width and h is height )
here b = 5, h = 10 and V = 200 , l is required to be found
substitute values into the formula
200 = l × 5 × 10
200 = 50l ( divide both sides by 50 )
4 = l
Thus the required length is 4 inches
