The tsa of cuboid is 62cm square if the length and breadth of cuboid are 5cm and 3cm find its lsa
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Step-by-step explanation:
Given:
TSA = 62cm^2
Length = 5 cm
Breadth = 3 cm
Height = h
TSA = 2 ( lb + bh + hl )
62 = 2 ( 5 × 3 + 3 × h + h × 5 )
62/2 = 15 + 3h + 5h
31 - 15 = 8 h
16 = 8 h
16/8 = h
2 cm = h
LSA = 2(l+b)h
= 2 × ( 5 + 3 )2
= 2 × 8 ×2
= 32 cm^2
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