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Perimeter 20m and 34m area 19.6m2 what is 2nd area

1 Answer

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The area of the larger figure to the nearest tenth is: 56.6 sq. m.

What is the area of the similar figures?

We would need to use "scale factor" for similar figures.

Lenths (1 dimensional) are related by a scale factor "k"

Area (2D) related by scale factor k²

Volume (3D) related by scale factor k²

Given Perimeter for both, we can say:

Perimeter of Smaller = k * Perimeter of Larger

20 = k * 34

k = 20/34

k = 0.5882

For area, we can similarly say:

Area of Smaller = k² * Area of Larger

19.6 = (0.5882)² * Area of Larger

19.6 = 0.3460 * Area of Larger

Hence,

Area of Larger = 19.6/0.3460 = 56.6 sq. m.

Complete question is:

These figures are similar. The perimeter and area of one are given. The perimeter of the other is also given. Find its area and round to the nearest tenth.

Perimeter 20m and 34m area 19.6m2 what is 2nd area-example-1