math problem

Upload: joseph-tan

Post on 05-Jan-2016

218 views

Category:

Documents


0 download

TRANSCRIPT

465490-aax4x4From the point inside a square the distance to three corners are 4, 5 and 6 m respectively. Find the length of sides of a square.Solution:Let x be a side of the triangleY=x^2a=angleEqtn 1.Cosine Law:

Eqtn 2.Cosine Law

Note:

So..

Let x^2=y