find the total surface area and the lateral surface area of the following cuboid whose dimensions are l equal to 9 CM, B equal to 7 cm, h equal to 3 cm
Answers
Answered by
12
Step-by-step explanation:
l = 9cm
b = 7cm
h = 3cm
TSA of cuboid = 2(lb+bh+hl)
= 2( 9 × 7 + 7 × 3 + 3 × 9 )
= 2 ( 63 + 21 + 27 )
= 2 ( 111 )
= 222cm^2
LSA of the cuboid = 2(l + b) ×h
= 2 ( 9+7 ) × 3
= 2 ( 16 ) × 3
= 32 × 3
= 96 cm^2
Answered by
6
Answer:
TSA = 222 sq. cm
LSA = 96 sq. cm
Step-by-step explanation:
Length, l = 9cm
Breadth, b = 7cm
Height, h = 3cm
TSA of cuboid = 2(lb + bh + lh)
= 2(9×7 + 7×3 + 9×3)
= 2(63 + 21 + 27)
= 2 × 111
= 222 square centimetres
LSA of cuboid = 2h ( l+ b)
= 2 × 3 ( 9 + 7)
= 6 (16)
= 96 square centimetres
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