Number System Numbers which can be written in the form of `p/q` where p and q are integers and q≠0 are called RATIONAL NUMBERS. Example (a) 2 can be written as rational number i.e. as 2/1, i.e. in the form of `p/q` where p = 2 and q= 1 are integers and q&ne...Read MoreTriangles-9th-Math Question (1) In quadrilateral ACBD, AC = AD and AB bisects ∠ A (see figure). Show that Δ ABC ≅ Δ ABD. What can you say about BC and BD? Read More