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dexar [7]
4 years ago
12

I need to know these three

Mathematics
1 answer:
vekshin14 years ago
8 0

Answer:

x = 3.5

perimeter of each figure = 54

Step-by-step explanation:

Perimeter of square:  4(3x + 3)       12x + 12

Perimeter of equilateral triangle:  3(5x + 0.5) = 15x + 1.5

Solve for x:  12x + 12 = 15x + 1.5

Grouping like terms results in 10.5 = 3x, which leads to x = 3.5.

Each polygon has a perimeter of 12x + 12, which here is 12(3.5) + 12 = 54

x = 3.5

perimeter of each figure = 54

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