Q56. A set of m parallel lines intersects another set of n parallel lines in a plane. The number of parallelograms formed is:Mathematics — NUST Mock By IBAGRADS 5 — Question 56 of 200A. m-1C2 × n-1C2B. mC2 × nC2C. m-1C2 × nC2D. mC2 × n-1C2Practice more Mathematics MCQs for entrance exam preparation on Examora.io.← Previous Question Next Question →