The base of a circular fence with radius 10m is given by x =10cos t, y = 10sin t. The height of the fence

at position (x, y) is given by the function h(x, y) = 4 +0.01(x2 - y2). so the height varies from 3mto 5m.

Suppose that 1L of paint covers 100m2.

Sketch thefence and determine how much paint you will need if you paint bothsides of the fence.