Find the area of a rhombus whose side is 25 cm and one of the diagonals is 32 cm?
Choose the correct choice
A) 276 sq.cm B) 268 sq.cm C) 640 sq.cm D) 297 sq.cm E) 600 sq.cm
Consider the rhombus ABCD. Let the diagonals intersect at E. Since diagonals bisect at right angles in a rhombus.   BE2 + AE2 = AB2   252 = 152 + AE2 AE = √(625 - 225)= 
<gadget id="calculator">(625 - 225)</gadget>
<output>400</output>
√400= 20,   AC = 20 + 20= 
<gadget id="calculator">20 + 20</gadget>
<output>40</output>
40 cm.   Area of a rhombus= 1/2 * d1d2   = 1/2 * 40 * 32= 
<gadget id="calculator">1/2 * 40 * 32</gadget>
<output>640</output>
640 sq.cm.   Answer:640 sq.cm
<result>C</result>
Find the area of a rhombus whose side is 25 cm and one of the diagonals is 32 cm?