Question

Rukhsar painted the outside of the cabinet of measure 1m×2m×1.5m.How much surface area did she cover if she painted all except the bottom of the cabinet

Answer 1

 Surface Area of Cabinet = 2(lb + lh + bh)
= 2(1 x 2 + 1 x 1.5 + 1.5 x 2)
= 2(2 + 1.5 + 3) = 2 x 6.5 = 13
Area of Bottom Surface = 1 x 2 = 2 sq m
 Area Covered by painting = 13-2
 = 11 sq m

Answer 2

GIVEN :-

• Length of cabinet = 2m

• Breath of cabinet = 1m

• Height of cabinet = 1.5m

TO FIND :-

• Surface did raju paint.

SOLUTION :-

We know that,

Now,

⟶ Area painted by raju = 2lh + 2bh + lb.

[ Put the values ]

⟶ Area painted by raju = 2( 2×1.5) + 2(1×1.5) + (2×1)

⟶ Area of painted by raju = 6 + 3 + 2

⟶ Area of painted by raju = 11m².

Therefore, the area painted by raju is 11m².