Question

On a scale drawing , a rectangular room has width = 14 cm & length = 22 cm.

The scale is 1 cm = 0.5 m .
Work out the real area of the room in square meters .
area =

Answer 1

14 x 0.5 = 7

22 x 0.5 = 11

7 x 11 = 77 square meters

Answer 2

SO Area formula is
AREA = length × width
A = L× W
For length:
1cm\0.5m = 22cm/?m We don`t know about the meter.
if we cross multiply the answer will be 11m.
For width:
1cm\0.5m = 14cm\?m We don`t know about the meter.
if we cross multiply the answer will be 7m.
The square meter should be 77
Because 11 × 7 = 77