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01:12:59

Question
The equilateral triangle shown has a perimeter of 45 inches.

What is the perimeter of the equilateral triangle in feet?

Responses
A


feet4 and 1 half feet
B


feet3 and 9 tenths feet
C


feet3 and 11 over 12 feet
D


feet

1 answer

C

The perimeter of an equilateral triangle is three times the length of one side. Since the perimeter is 45 inches, each side is 45 / 3 = 15 inches.

To convert 15 inches to feet, divide by 12 (since 1 foot = 12 inches):

15 inches / 12 = 1.25 feet

Therefore, the perimeter of the equilateral triangle in feet is 1.25 feet.

Answer: C) feet3 and 11 over 12 feet