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Dvinal [7]
3 years ago
13

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⇒

<em><u>151</u></em>

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

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

<u><em>152</em></u>

<u><em></em></u>P=a+b+c+d...\\P=(4a-100)+(2a-15)+(2a+40)=4a-100+2a-15+2a+40=\\=8a-75<u><em></em></u>

<u><em></em></u>

<u><em>153</em></u>

You forgot to attach a photo

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