A cuboid is 20m x 10m x 8m. find its length of the diagonal, surface area, volume.
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diagonal=√(20*2+10*2+8*2)
√400+100+64=
√564=23.74m
s.a.=2(20+10)+2(10+8)+2(20+8)=
60+36+56=152m
volume =20×10×8=1600m*3
√400+100+64=
√564=23.74m
s.a.=2(20+10)+2(10+8)+2(20+8)=
60+36+56=152m
volume =20×10×8=1600m*3
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