Find the surface area 4cm 5cm 6cm 13cm

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asked Feb 28, 2019 42.1k views

3 votes

Find the surface area 4cm 5cm 6cm 13cm

Mathematics
high-school

Jesca asked

by Jesca

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1 Answer

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$A_\Delta=(1)/(2)\cdot6\cdot4=12\ cm^2\\\\A_([]_1)=6\cdot13=78\ cm^2\\\\A_([]_2)=5\cdot13=65\ cm^2\\\\A=2A_\Delta+A_([]_1)+2A_([]_2)\\\\A=2\cdot12+78+2\cdot65=24+78+130=232\ cm^2$

Ozden answered Mar 6, 2019

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