In the given figure, ΔABC is a right triangle.

The figure shows the right-angle triangle ABC. B is the length of AC and a is the height of BC and c is the base of AB.
What is true about ΔABC?

Based on the given figure, we can deduce the following about ΔABC:

1. ΔABC is a right triangle: This is indicated by the presence of the right angle at vertex B.

2. AC is the hypotenuse: In a right triangle, the side opposite the right angle is called the hypotenuse. So, in this case, AC is the hypotenuse of ΔABC.

3. BC is the height: The height of a triangle is the perpendicular distance between the base and the opposite vertex. In this case, BC is the height of ΔABC.

4. AB is the base: The base of a triangle is one of the sides forming the right angle. In this case, AB is the base of ΔABC.