If side c of a right triangle is called the hypothenuse, what are the other sides called

The other sides are called legs.

Step-by-step explanation:

Right Triangles

They are a special type of triangles on which one of its internal angles is 90°. Since the sum of all internal angles is 180°, the sum of the other acute angles is 90°.

The longest side is called the hypotenuse and the other two sides are called legs.

The attached image shows a right triangle of hypotenuse c and legs a and b.

a is the right answer