the ratio of radius of a circle and the side of a square is 2: 7. find the ratio of their areas:  Select the correct option.
A) 2 : 1  B) 4 : 7  C) 8 : 77  D) 4 : 49  E) none
<gadget id="calculator">2 / 7</gadget>
<output>2/7 = around 0.285714</output>

<gadget id="calculator">(2/7) ** 2</gadget>
<output>4/49 = around 0.081633</output>

<result>D</result>
the ratio of radius of a circle and the side of a square is 2: 7. find the ratio of their areas:
power(divide(2, 7), 2)
"radius / side = 2 / 7 â ‡ ’ area of circle / area of square = 4 / 49 answer : d"