Question

Q. Soham painted the outside of the cabinet of measure 1.5 m x 3 m x 2.5 m. How much surface area did he cover if he painted all except the bottom of the cabinet?

Plz explain this question...​

Answer 1

Answer:

Soham painted the outside of the cabinet of measure 1.5 m x 3 m x 2.5 m.

To find :

How much surface area did he cover if he painted all except the bottom of the cabinet

Solution :

★ Length of the cabinet = 1.5 m

★ Breadth of the cabinet = 3m

★ Height of the cabinet = 2.5 m

According to the formula of total surface area of cuboid

→ 2(lb + bh + lh)

Focus Zone : He painted all except the bottom of the cabinet

★ lb + 2bh + 2lh

Substitute the values

→ 1.5 × 3 + 2 × 3 × 2.5 + 2 × 1.5 × 2.5

→ 4.5 + 15 + 7.5

→ 27 m²

•°• Surface area of cabinet except bottom i.e 27 m²

Answer 2

Step-by-step explanation:

(1.5*2.5)2+(3*2.5)2+1.5*3=answer,solve it