Question

Radha prepared a wall painting measuring $60cm$ long and$30cm$ broad. What is the surface area of the painting in $square$ $centimetres$ and in $\mathrm{square}\mathrm{metres}$?

Answer 1

Assumptions:

$1c{m}^2=0.0001m^2$

Given:

Length $=60cm,$ Breadth $=30cm$

Step 2: Finding surface area

∵ object is two-dimensional,

$Surfacearea=LengthxBreadth=60cmx30cm=1800c{m}^2$

Or,$1800c{m}^2=1800\times 0.0001m^2=0.18m^2$

Hence, area is 1800 cm² or 0.18 m²