Question

leena is painting a box. if she painted all the box except the top of the box,find the area of surface painted by her?length=6cm breadth=7cm and height=6cm.

Answer 1

Answer:

198 cm^2

Step-by-step explanation:

2h(l+b)+lb=Lateral surface area and bottom

2*6(7+6)+7*6=Lareral surface area and bottom

=12(13)+42

156+42

198 cm^2

Answer 2

Answer:198 cm^2

Step-by-step explanation:

Surface area painted by leena =

Lateral surface area of cuboid + area of rectangle

= 2 (bh+hl) + lb

=2 (7×6+6×6) + 7×6

=2 (42+36) + 42

=2×78 + 42

=156 +42

=198 cm^2