find the
T.S A , LS. A and volume of cuboid
given
:)
L=5
b= 7.5
h =5
ii) l = 3.2
b= 5.6, h= 7.8
Answers
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Step-by-step explanation:
1) L= 5, b=7.5, h=5
TSA of cuboid= 2(lb +bh +hl)
= 2( 5×7.5 +7.5×5 +5×5)
= 2( 37.5 +37.5 +25)
= 2( 75 +25)
= 2( 100)
= 200
LSA of cuboid= 2( l+b)h
= 2 ( 5+7.5)×5
= 2 ( 12.5)×5
= 25×5
= 125
Volume of cuboid= lbh
= 5×7.5×5
= 25×7.5
= 187.5
2) L= 3.2, b= 5.6, h= 7.8
TSA of cuboid= 2( lb +bh +hl)
= 2 ( 3.2×5.6 +5.6×7.8 +7.8×3.2)
= 2 ( 17.92 +43.68 +24.96)
= 2 ( 61.6 + 24.96)
= 2 ( 86.56)
= 173.12
LSA of cuboid= 2( l+b) h
= 2( 3.2 +5.6)× 7.8
= 2( 8.8) × 7.8
= 2( 68.64)
= 137.28
Volume of cuboid= lbh
= 3.2×5.6×7.8
= 17.92×7.8
= 139.776
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