3 years ago

The shorter leg of a 30°-60°-90° triangle is 7.4 meters long. Find the perimeter.

1 answer:

4 0

The ratio of the sides of a 30 60 90 triangle are 1 : sq root (3) : 2
So the sides are
7.4
7.4 * sq root (3) = 12.82
7.4 * 2 = 14.8

Perimeter = 7.4 + 12.82 + 14.8
Perimeter = 35.02

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