Let the angle adjacent to ∠27° be x .


Let the angle opposite to ∠27° be y .

Let the angle adjacent to ∠y ( 27°) be w .

Let the angle opposite to ∠35° be p .

Let the angle adjacent to ∠35° be a .

Let the angle opposite to ∠35° be t .

Let the angle opposite to ∠145° be o .
