A rectangle has a length of 40 meters and a width of 20 meters. A similar smaller rectangle has half the length and width of the big rectangle. What's the area of the smaller rectangle?
The length of the smaller rectangle is 1/2*40 = 
<gadget id="calculator">1/2*40</gadget>
<output>20</output>
20 meters.
The width of the smaller rectangle is 1/2*20 = 
<gadget id="calculator">1/2*20</gadget>
<output>10</output>
10 meters.
Since the area of a rectangle is found by multiplying the length times the width, the total area of the smaller rectangle is 20*10 = 
<gadget id="calculator">20*10</gadget>
<output>200</output>
200 meters square.

<result>200</result>