Write a recursive method called drawTriangle$()$ that outputs lines of $\text{'}*\text{'}$ to form an upside down isosceles triangle. Method drawTriangle$()$ has one parameter, an integer representing the base length of the triangle. Assume the base length is always odd and less than $20.$ Output $9$ spaces before the first $\text{'}*\text{'}$ on the last line for correct formatting.

Hint: The number of $\text{'}*\text{'}$ decreases by $2$ for every line drawn.