Question

length =7.5 CM
breadth= 5.2cm
height= 3 cm
find TSA and CSA of the cuboid with given dimensions ​

Answer 1

Given :

dimensions of the cuboid-

length (l) - 7.5 cm

breadth (b) - 5.2 cm

height (h) - 3 cm

To be found :

TSA- Total Surface Area

CSA- Curved Surface Area

Formula for finding

Total Surface Area = 2(lb+bh+hl) unit sq.

Curved Surface Area = 2h(l+b) unit sq.

Now,

Total Surface Area of the cuboid

= 2(lb+bh+hl) unit sq.

= 2(7.5×5.2 + 5.2×3 + 3×7.5)

= 2(39 + 15.6 + 22.5)

= 2(77.1)

= 154.2 cm²

Now,

Curved Surface Area

= 2h(l+b) unit sq.

= 2 × 3 (7.5 + 5.2)

= 6 (12.7)

= 76.2 cm²

Hence

Total Surface Area = 154.2 cm²

Total Surface Area = 154.2 cm²Curved Surface Area = 76.2 cm²

Answer 2

Answer:

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