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3 years ago

13

The length of each side of an equilateral triangle is decreased by 3 inches,so the perimeter is now 21 inches.what is the origin

al length of each side of the equilateral triangle

2 answers:

garri49 [273]3 years ago

8 0

An equilateral triangle has equal sides

so if you divide the perimeter by 3 you would get the length for all of the sides

21/3 = 7

since it said it was decreased by 3 inches you add 3 inches back

7 + 3 = 10

so the original length of one side of the triangle is 10 inches

vfiekz [6]3 years ago

6 0

The Perimeter then would be 30 Inches!

:V

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Therefore, x = 8√2.

For y, we will be using the Sine Function.

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