Question

prameela painted the outer surface of a cabinet of measure 1m×2m×1.5m. find the surface area she cover if she painted all expect the bottom of the cabinet

Answer 1

surface area that she painted
= TSA of cabinet - area of bottom
= 2 (lb + bh + lh) - lb
= 2 (1×2+2×1.5+1×1.5) - 1×2
= 2 (2+3+1.5) - 2
= 2 × 6.5 - 2
= 13 - 2 = 11m^2
Ans. surface area she painted = 11m^2