An isosceles triangle has sides A, B, and C with sides B and C being equal in length. If side A goes from (7 ,4 ) to (2 ,1 ) and the triangle's area is 18 , what are the possible coordinates of the triangle's third corner?
1 Answer
Nov 8, 2016
Explanation:
Calculate the middle point of side A
Get the direction of A
The direction of A axis:
The equation of A axis:
graph{(5x+3y-30)(3x-5y-1)((x-2)^2+(y-1)^2-0.01)((x-7)^2+(y-4)^2-0.01)((x-45/34)^2+(y-265/34)^2-0.01)((x-261/34)^2+(y+95/34)^2-0.01)=0 [-3,23,-4,9]}
Let
The triangle area can be calculated:
so