Question

A rectangle is measured 6.5 cm by 7.8 cm .

If its actual area is 52.4 square cm , find the percentage error in the area.

Answer 1

3.24%

Explanation:

Percentage error =[ (|calculated value - actual value) / actual value] x 100

calculated area = length x width

6.5 x 7.8 = 50.7

[(|50.7 - 52.4|] / 52.4] x 100 = 3,24