2 years ago

Find the perimeter of the triangle.

Mathematics

1 answer:

PtichkaEL [24]2 years ago

7 0

Answer:

Perimeter of the Triangle

$( {x}^{2} - 5x + 13) + (2 {x}^{2} - x + 19) + ( {x}^{2} + 3x + 21) \\ =(1 + 2 + 1) {x}^{2} + ( - 5 - 1 + 3)x + (13 + 19 + 21) \\ =(4 {x}^{2} - 3x + 53) \: units$

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Find the perimeter of the triangle.​

Find the perimeter of the triangle.