0. Review of College Algebra

What is the sum of the interior angles of a $19-\mathrm{gon}$?

In a right triangle, if one leg has length $3$ units and the other leg has length $4$ units, what is the length of the hypotenuse?

In a right triangle with legs of length $14$ and $48$, what is the length of the hypotenuse?

A right triangle has legs of length $6$ and $8$. What is the length of the hypotenuse?

A right triangle has legs of lengths $6$ units and $8$ units. What is the length of the hypotenuse? If necessary, round to the nearest tenth.

Which equation could be used to find the length of the hypotenuse in a right triangle with legs of lengths $a$ and $b$?

A ladder is leaning against a wall. The foot of the ladder is $6$ meters away from the wall, and the ladder reaches a height of $8$ meters on the wall. What is the length of the ladder?

Which type of triangle has $0$ reflectional symmetries?

A right triangle has legs of length $5$ units and $10$ units. What is the length of the hypotenuse?

Given three positive numbers, how can you determine if they form a Pythagorean triple?

In the context of a right square pyramid, what is the main difference between the $\mathrm{height}$ and the $\mathrm{slant} \mathrm{height}$ of the pyramid?

Which mathematical equation can be used to determine if a triangle with side lengths $a$, $b$, and $c$ (where $c$ is the longest side) is a right triangle?

Given a right triangle with legs of length $5$ and $12$, what is the length of the hypotenuse?

A regular hexagon can be divided into six congruent equilateral triangles. What is the measure of each interior angle of a regular hexagon? If necessary, round to the nearest tenth.

Given that $20$, $21$, and $x$ form a Pythagorean triple, what is the value of $x$?