## Trigonometry (11th Edition) Clone

$A=\frac{1}{2}s^{2}$
1. In this 45-45-90 triangle, the base and the height are both $s$. 2. Substitute and simplify. $A=\frac{1}{2}bh$ $A=\frac{1}{2}\times s\times s$ $A=\frac{1}{2}s^{2}$