Question

find the total surface area of cuboid of length 4.5 cm, breadth 3 cm height 6. 5 cm​

Answer 1

Step-by-step explanation:

TSA = 2(lb + bh + hl)

= 2{(4.5×3)+(3×6.5)+(6.5×4.5)}

= 2(13.5+19.5+29.25)

= 2×62.25

= 124.5

Answer 2

Answer :-

Given :-

• Length = 4.5 cm
• Breadth = 3 cm
• Height = 6.5 cm

To Find :-

• Total surface area of cuboid

Solution :-

We know that,

→ Total surface area of cuboid = 2 ( lb + lh + hb )

where,

• l is length of cuboid
• b is breadth of cuboid
• h is height of cuboid

Substituting the value in formula :-

→ TSA = 2[( 4.5 × 3 ) + ( 4.5 × 6.5 ) + ( 6.5 × 3 )]

→ TSA = 2 ( 13.5 + 29.25 + 19.5 )

→ TSA = 2 ( 65.25 )

→ TSA = 124.5

Total surface area of cuboid = 124.5 cm²