The length of a rectangle is two - fifths of the radius of a circle. The radius of the circle is equal to the side of the square, whose area is 4900 sq.units. What is the area (in sq.units) of the rectangle if the rectangle if the breadth is 10 units?
Choose the correct choice from the following choices.
A) 140 sq.units  B) 280 sq.units  C) 167sq.units  D) 178sq.units  E) 176sq.units
Given that the area of the square = 4900 sq.units   =&gt; Side of square = √4900 = 70 units   The radius of the circle = side of the square = 70 units Length of the rectangle = 2/5 * 70= 
<gadget id="calculator">2/5 * 70</gadget>
<output>28</output>
28 units   Given that breadth= 10 units   Area of the rectangle = lb = 28 * 10= 
<gadget id="calculator">28 * 10</gadget>
<output>280</output>
280 sq.units   Answer:280 sq.units
<result>B</result>
The length of a rectangle is two - fifths of the radius of a circle. The radius of the circle is equal to the side of the square, whose area is 4900 sq.units. What is the area (in sq.units) of the rectangle if the rectangle if the breadth is 10 units?