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kati45
[8]
3 years ago
8
The perimeter of an equilateral triangle is 6 cm more than the perimeter of a square. The length of a side of the square is 3 cm
less than the length of a side of the equilateral triangle. Find the area of the square.
Mathematics
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answer:
yan
[13]
3 years ago
5
0
3t=4s+5 (s=side of square, t= side of triangle)
s=t-3, t=s+3, using this value for t in the first equation gives us:
3(s+3)=4s+5
3s+9=4s+5
-s=-4
s=4
so the side length of the square is 4cm and the area of a square is just s^2
A=16cm^2
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