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LERASANJIAHCLEIRON
Respondido

what is the perimeter of a triangle whose sides are 2ײ+ 7 cm, ײ- 2 cm and 4ײ+ 4 cm?​

Resposta :

LARAVIEIRA23ON

P = 7x² + 9

explanations:

The perimeter of a triangle :

P = s + s + s

the letters are:

P = perimeter

s = side

then...

P = s + s + s

P = (2x²+ 7 ) + (x²- 2) + (4x²+ 4 )

P = 2x²+ 7 + x²- 2 + 4x²+ 4

P = 7x² + 9

so, the perimeter of this triangle is P = 7x² + 9

:) I hope I help you.

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