Question

# Find, correct to four decimal places, the length of the curve of intersection of the cylinder 4x^2 + y^2 = 4 and the plane x + y + z = 5.

Find, correct to four decimal places, the length of the curve of intersection of the cylinder $$\displaystyle{4}{x}^{{2}}+{y}^{{2}}={4}$$ and the plane $$x + y + z = 5.$$