My text states the following areas of two similar triangles: $$A_1 = \frac{1}{2}h_1b$$
$$A_2=\frac{1}{2}h_2e$$
$$\frac{A_1}{A_2}=\frac{\frac{1}{2}h_1b}{\frac{1}{2}h_2e}=\left(\frac{h_1}{h_2}\right) \left(\frac{b}{e}\right)=\left(\frac{b}{e}\right) \left(\frac{b}{e}\right)=\left(\frac{b^2}{e^2}\right)$$
I'm not following how they're getting:
$$\left(\frac{h_1}{h_2}\right) \left(\frac{b}{e}\right)=\left(\frac{b}{e}\right) \left(\frac{b}{e}\right)$$
I fear it's something painfully obvious.
Thanks in advance!