Question

Help pls on this question pls

Answer 1

Step-by-step explanation

volume formulae = π r² h

3.14 × 4² × 3

3.14 × 16 × 3

= 150.72 for 1 candle

150.72 × 130

= 19593.6

Answer 2

19593.6 in³

Explanation:

You want to know the volume of 130 cylindrical candles, each with a radius of 4 inches, and a height of 3 inches.

Volume

The volume of a cylinder is given by ...

V = πr²h

where r is the radius and h is the height.

The volume of 130 cylinders of radius 4 in and height 3 in will be ...

130(π·(4 in)²·(3 in)) = 130·3.14·4²·3 in³ = 19593.6 in³

The wax needed for 130 candles is 19593.6 cubic inches.

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