Hello,

ABC=180-135 (because there's the line AB)Find the angles ABC and ACB

ACB=180-(BAC+ABC), because the sum of angles of a triangle is 180.

http://en.wikipedia.org/wiki/Law_of_sines(a)Use the sine formula to find the distance between A and C and the distance between

B and C

See in the same link, the formula :Find The area of ABC

where S is the area