Asked by rhianne

Find the ratios of the perimeters and areas of the pairs of two regular pentagons with corresponding sides that measure 48cm and 54 cm.

Answers

Answered by Reiny
Since perimeter is a linear relationship, the ratio of perimeters of two similar figures is proportional to the ratio of their sides, thus
48 : 54 or 8 : 9

Since area is a quadratic relationship , .....
the square of their sides, thus
48^2 : 54^2 = 2304 : 2916
= 64 : 81
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