Solution 7: Perimeter and Area

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(a)

Since the function is a continuous function, we may again apply the FTC to obtain

as

since

(we are using the fact that since is a periodic function with a period of ).

(b)

From equation (3), we know that and we can see that:

(c)

From equation (7), we know that . We have

Problem 7

References: Santalo. De-lin