Question

A right angle triangle with angle c =90° is isoseless triangle if A is (-1,-9) is (-7,-1) find the cordinate of c​

Answer 1

answer

as the angle C=90° and ABC is an isosceles triangle

therefore ,AC = BC

take the coordinates of C as (a,b) by ,taking AC = BC , we get A=B

now , apply Pythagoras theorem

AB square = AC square + BC square

obtain the value for A and so get coordinates for point C.

I hope you understand