A paper has the precise shape of a triangle which is denoted by ABC, with AB = BC = CA = x (say) and, D is a point on BC.
Vertex A is joined onto D forming the crease EF - where E is on AB and F is on AC.
Given that DF is perpendicular to BC, determine:
- The length of EF in terms of x.
- The area of each of the triangles BED, DEF and DFC in terms of x.
(In reply to Solution
The square root symbol and 1/2 symbol has come out ji and o respectively. But in word file symbol where correct.
Posted by Salil
on 2013-04-22 02:33:05