The Earth's orbit around the sun is elliptical. The sun is at one focus (the dot on the right) which is a distance "c" from the ellipse's centre. "a" and "b" are the lengths of the semi-major and semi minor ellipse axes. (The diagram on the right is definitely NOT to scale - the focus is MUCH closer to the centre of the ellipse.) For lengths "a", "b" and "c" in the diagram, a² = b² + c² and the area of the ellipse is ab 1. (a) Find the lengths of the major and minor axes of the Earth's orbit. a (b) What is the total area enclosed by Earth's elliptical orbit (in square km)?