Question

The side opposite to the right angle in a triangle is called ______

Answer 1

Hint: First of all, there are three sides in a triangle and there is one angle of ${90^ \circ }$ in a right triangle. The names of the sides of the right angle triangle are base, perpendicular and hypotenuse. The hypotenuse is the longest side in a right triangle and Base and perpendicular of a right triangle are the sides that intersect at right angles in the triangle.

Complete step-by-step answer:
There are 3 sides in a triangle and there is one right angle in a right angle triangle.
A right angle in a triangle is denoted by a small rectangle.

The name of the three sides in a triangle are base, perpendicular and hypotenuse.
Base and perpendicular of a right triangle are the sides that intersect at right angle in a triangle.
Here, $AB$ and $BC$ are the sides that intersect at right angles, and hence their names are perpendicular and base.
Whereas the hypotenuse is the longest side in a right triangle, which is $AC$ in the figure of triangle $ABC$
Therefore, the side opposite to the right angle in a triangle is called hypotenuse of the triangle.
Thus, the correct answer is Hypotenuse.

Note: Right triangle is a triangle with one value of angle as ${90^ \circ }$. The name base and perpendicular depends on the location of the angle. A Pythagoras theorem is applicable in a right triangle. We also use the right triangle for trigonometric ratios.