### Home > CALC > Chapter 5 > Lesson 5.3.2 > Problem 5-127

5-127.

Solve for *b* or *h*.

Dissect the isosceles triangle into two right triangles, label its dimensions in terms of *b* or *h*. Then use the the Pythagorean Theorem to solve for the hypotenuse.

Write a perimeter function. Then use Calculus to optimize it.