Right Triangle 525477

1. The problem is to draw a triangle with a $90^\circ$ angle. 2. A triangle with one $90^\circ$ angle is called a right triangle. 3. Here is a simple labeled sketch of a right triangle: $$\angle A = 90^\circ$$ 4. The diagram shows the right angle at $A$, with the other two vertices labeled $B$ and $C$. 5. Final answer: a right triangle with one $90^\circ$ angle.