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Please help I’ve tried this multiple times

Please help I’ve tried this multiple times-example-1

1 Answer

2 votes

Answer:

248.5 mm³

Explanation:

Given similar shapes with a smaller : larger surface area ratio of 95 mm² : 245 mm², you want the larger volume if the smaller is 60 mm³.

Scale factor

The scale factor for the two shapes is the square root of the ratio of areas:

larger : smaller = √(245 : 95) ≈ 1.60591

The ratio of volumes is the cube of the scale factor for the two shapes:

larger volume : smaller volume = (1.60591 : 1)³ ≈ 4.14156 : 1

Then the larger volume is ...

larger volume = smaller volume × 4.14156 = (60 mm³)(4.14156)

larger volume ≈ 248.5 mm³

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Additional comment

You don't need to compute the actual scale factor. The ratio of volumes is the 3/2 power of the ratio of areas. That fact is used in the calculation shown in the attachment.

<95141404393>

Please help I’ve tried this multiple times-example-1
answered
User Waqas Raja
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