The side of square 20 centimeters each is decreased by 2cm each.
What is the percentage decrease in the length of a side of the square
Answer (1)
Answer:10%Step-by-step explanation:Percent difference is given by:(Final - Original)/(Original)*(100%)In this case, the Original is 20 cm and the Final is (20 - 2) or 18 cm.Percent Difference = [(18 - 20)/(20)][100%]Percent Difference = [(- 2)/(20)][100%]Percent Difference = [- 10%]The percentage difference is - 10%. The question asks for the DECREASE, so the answer becomes - (-10%) or just 10% decrease.
