6. If angles A, B, C and D of the quadrilateral ABCD, taken in order, are in the ratio 3:7:6:4, then ABCD is a 6. If angles A are in the ratio 3:7:6:4 B C and D of the quadrilateral ABCD taken in order then ABCD is a June 30, 2021 Category: Chapter 8 - Quadrilaterals , Maths , NCERT Class 9 , Facebook Messenger WhatsApp Share this:TwitterFacebook Related