Question

find the area of floor of a square room is square metre whose side is 80 cm​

Answer 1

Measure of the side of the square=80cm

so area = side × side=80cm×80cm=6400cm²

HENCE THE AREA OF THE FLOOR IS 6400cm²

Answer 2

Answer:

area of floor in cm² = 80²

= 6400cm²

area of floor in m²

10000cm²= 1m²

1cm² = 1/10000m²

6400cm² = (1×6400)/10000m²

6400cm² = 6400/10000m²

6400cm² = 64/100m²

6400cm² = 0.64m²

hope it helps.