in a trapezium abcd , ab is parallel to dc , ab = 3 * dc , and the diagonals of the trapezium intersect at o . the ratio of the area of ∆ ocd to the area of ∆ oab is :
triangles are similar , so ratio will be 1 : 9 a
multiply(divide(const_1, 3), divide(const_1, 3))