Question

4. Rukhsar painted the outside of the cabinet of
measure I m * 2 m * 1.5 m. How much
2 m
surface area did she cover if she painted all except the bottom of the cabinet,​

Answer 1

Answer:

Total surface area of the cabinet =2(lb+bh+hl)

=2[(1)(2)+(1)(1.5)+(2)(1.5)]

=13m

Area of base of the cabinet = l×b=2m

Surface area painted = 13−2 = 11m²

Hope it helps you....

Answer 2

Step-by-step explanation:

Answer :

Length (l) of the cabinet = 2 m

Breadth (b) of the cabinet = 1 m

Height (h) of the cabinet = 1.5 m

Area of the cabinet that was painted = 2h (l + b) + lb

= [2 x 1.5 x (2 + 1) + (2) (1)] m2

= [3(3) + 2] m2

= (9 + 2) m2

= 11 m2