Question

find lsa and tsa of cuboid which is 8cm long 6cm bread and 3.5 hight​

Answer 1

Given :-

• length = 8 cm
• breadth = 6 cm
• height = 3.5 cm

Need to find :-

• linear surface area ( LSA )
• total surface area ( TSA )

Procedure :-

• Finding of Linear Surface Area

=> LSA = 2h ( l + b )

=> LSA = 2 × 3.5 ( 8 + 6 )

=> LSA = 7 × 14

=> LSA = 98 cm²

• Finding of Total Surface Area

=> TSA = 2lh + 2bh + 2lb

=> TSA = (2×8×3.5) + (2×6×3.5) + (2×8×6)

=> TSA = 56 + 42 + 96

=> TSA = 194 cm²