heyhey8jdjsk
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  • 20-02-2017
  • Mathematics
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Could someone help me

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catrionac
catrionac catrionac
  • 20-02-2017
Area (A) Perimeter(P)
square 
A=lw
A=9*9
A= 81
P=L*4
P=9*4
P=36
trapezoid
A= 1/h(b1+b2)
A=1/2*12(10+20)
A=6(10+20)
A=6*30
A=180
P=S+S+S+S
P=13+13+10+20
P=26+30
P=56
rhombus
A=bh
A= 4*3
A=12
P= s+s+s+s
P=5+5+5+5
P=20
parallelogram 
A=bh
A=20*4
A=80
P=S+S+S+S
P=20+20+4+4
P=40+8
P=48
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