If the radius of a circle is increased by 20% then the area is increased by: Select the correct option:	A) 44	B) 219	C) 16	D) 18	E) 11
Explanation:   Let say radius = πr2πr2 = π102π102 = 100π100π   New radius = 10 × 120% = 12   New area = π122π122 = 144π144π   Increment = 144π−100π100π×100144π−100π100π×100 = 44%   44nswer: 44
<result>A</result>
If the radius of a circle is increased by 20% then the area is increased by: