The side of a rhombus is 24 m and length of one of its diagonals is 18 m. The area of the rhombus is?  Choose the correct answer:
A) 410.47
B) 403.47
C) 420.47
D) 400.47
E) 300.47
area of the rhombus = 1/2 * p * √4(a)2 - (p)2   a= 24 ; p = 18   A=1/2 * 18 *√4(24)2 - (18)2   =1/2 * 18 *√2304 - 324   =1/2 * 18 *√1980   A =400.47   Answer : 400.47
<result>D</result>
The side of a rhombus is 24 m and length of one of its diagonals is 18 m. The area of the rhombus is?