Question

Janelle is painting a spherical model of a human cell for a science fair. She uses 615.44 square inches of paint to

Answer 1

The diameter of the cell model according to the taks content is; 14in.

Diameter of the cell model

Volume of paint = 615.44 square inches

π = 3.14

Volume of a sphere = 4πr²

615.44 = 4 × 3.14 × r²

615.44 = 12.56/r²

r² = 615.44 ÷ 12.56

r² = 49

r = 7

Hence, the diameter of the cell is; 2 × r = 2 × 7 = 14in.

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