Question

Abcd is a quad. In which diagonal ac and bd intersect at o prove a).Ab+bc+cd+da<2(bd+ac) b).Ab+bc+cd+da>ac+bd

Answer 1

ABCD is a quad.Its diagonals are AC and BD. In triangle ACB, AB + BC > AC - 1. In triangle BDC, BC + CD > BD - 2. In triangle ACD, AD ...

Answer 2

refer the answer is given below