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Q: How do you work out the perimeter of a triangle with expressions?
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the ratio of the perimeter of triangle ABC to the perimeter of triangle JKL is 2:1. what is the perimeter of triangle JKL?


How do you work out the perimeter of scalene triangle?

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A square has a perimeter that is 3 cm longer than the perimeter of an equilateral triangle the side of the triangle is 112 cm longer than that of the square?

Suppose the side of the square is x cm.Then its perimeter is 4x cm.The perimeter of the square is 3 cm more than that of the triangleso the perimeter of the triangle is 4x - 3 cm.Also, if the side of the square is x cm, the side of the triangle must be x + 112 cm.Then its perimeter must be 3*(x + 112) = 3x = 336 cm.Equating the two expressions for the perimeter of the triangle,4x - 3 = 3x + 336therefore x = 339 cm.The square has sides of 339 cm and a perimeter of 1356 cm.The triangle has sides of 451 cm and a perimeter of 1353 cm.


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How do you work out the perimeter of a non right-angled triangle?

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