the diagonal of a rhombus are 62 m and 80 m . its area is :
"area of the rhombus = 1 / 2 d 1 d 2 = ( 1 / 2 ã — 62 ã — 80 ) cm ( power ) 2 = 62 ã — 40 = 2480 cm ( power ) 2 answer is b ."
rhombus_area(62, 80)