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3 years ago

151. Find the perimeter of this triangle

Mathematics

1 answer:

Lena [83]3 years ago

6 0

The perimeter is the sum of all the sides of the figure⇒

151

$P=a+b+c+d...$

$P=(y+9)+(3y+3)+(4y+6)=y+9+3y+3+4y+6=8y+18$

152

$P=a+b+c+d...\\P=(4a-100)+(2a-15)+(2a+40)=4a-100+2a-15+2a+40=\\=8a-75$

153

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Answer:

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Step-by-step explanation:

Step 1: Subtract 3x from both sides.

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Step 2: Divide both sides by -11.

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