Question

IN A RECTANGLE ABCD, E IS A POINT ON AB SUCH THAT AE=3/4AB.IF AB=16M AND AD=5M, THEN FIND THE LENGTH OF DE.

Answer 1

since AB is 16 m n AE=3/4 AB, therefore AE is equals to 12m.
DE =√(AD)2+(AE)2 {by Pythagoras theorem}
=√25+144
=√169
=13m
therefore DE=13 m
DE=13 m