ally1491 ally1491

21-02-2018
Mathematics

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Help plz ..............

Help plz class=

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madisonsmith04 madisonsmith04

21-02-2018

First I would find the base, which is a square so 10x10=100
then find the triangle (a=1/2bh) a=1/2(12)(10) a=1/2(120) a=60
since there are four triangle sides do 60x4 which equals 240, so then add the sides to the base 100+240=340, the answer is A

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