In Ex 9 and Ex 10, find the area of the surface: Ex 9: The part of the surface z = x + y? that lies above the triangle with vertices (0, 0), (1, 1) and (0, 1). de Jy - 24 Ex 10: The part of the paraboloid x = y2 + z2 that lies inside the cylinder y2 + z2 = 9 2 : 4 - X , 2 : Ny-X dz d ? y Ax - - wy - x /