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Mashcka [7]
3 years ago
10

Help me please!!! Thank you

Mathematics
1 answer:
KiRa [710]3 years ago
7 0
To find the value of x, we will have to set the perimeters equal. 
(2x+4)*4 would be P for the square and (2x+8)*3 would be P for the triangle.
We have to set these equal and solve for x. 
(2x+4)*4=(2x+8)*3
8X+16=6x+24
-6x  -16   -6x -16
2x=8
x=4
Now we plug x=4 in for each perimeter.
Square: 2(4)+5=13
Triangle: 2(4)+8=16



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