Teacher:In this task, you need to answer the given multiple-choice question on geometry. Classify your answers into 'a', 'b', 'c', 'd', and 'e'.
Teacher: Now, understand the problem? Solve this instance: Problem: the perimeter of a rhombus is 68 cm and one of its diagonals is 16 cm . find its area ?
Options: a ) 290 , b ) 240 , c ) 2870 , d ) 289 , e ) 292
Student:
b