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3 years ago

9

The perimeter of an equilateral triangle is 63 in.

2 answers:

hoa [83]3 years ago

6 0

Answer:

Step-by-step explanation:just do 4x+3

Mashcka [7]3 years ago

4 0

Because it is an equilateral triangle, all three sides are the same length. Because of this, you need to divide 63/3 to find out the length of one side. 63/3=21. So this tells us that 4x+3=21. Now that we have the equation, we need to solve for x. To do this, subtract the 3 on both sides to get 4x alone. 21-3=18. So now we know that 4x=18. Now divide 4 on each side to get x alone. X= 18/4, which simplifies to 9/2. In decimal form, x=4.5.

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