🌽 Maize Storage Sack Challenge

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Type In Game

Calculate the Surface Area of the Storage Sack

A small-scale farmer in Kilifi County wants to store harvested maize in a storage sack shaped like a cylinder, open at the top. The sack has a diameter of 10 m and a height of 25 m. Calculate the surface area of the sack that comes in contact with the maize so the farmer can determine how much lining material is needed to keep the grains dry.

Cylindrical Maize Sack
Given:
Diameter (d) = 10 m
Radius (r) = 5 m
Height (h) = 25 m
π = 3.142
Shape = Open at top
Formula:
Surface Area = πr² + 2πrh
SA = Bottom + Curved Side
SA = 3.142 × 25 + 2 × 3.142 × 5 × 25
Find the total surface area of the sack (include the bottom but not the top).
Type in your answer in the space provided:
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