2 years ago

The perimeter of a triangle is 16x−6. If two sides measure 3x+2 and 4x−9, then how long is the third side?

Mathematics

1 answer:

Studentka2010 [4]2 years ago

7 0

Perimeter of a triangle is the sum of measures of its all three sides, let the other be y,

we know,

$\hookrightarrow \: y + 3x + 2 + 4x - 9 = 16x - 6$

$\hookrightarrow \: y + 7x - 7 = 16x - 6$

$\hookrightarrow \: y = 16x - 6 - 7x + 7$

$\hookrightarrow \: y = 6x + 1$

hence, measure of the third side is 6x + 1

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