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 .