Answer:
See explanation below
Step-by-step explanation:
To find the principal square root of a number, we the number with an index of 2. The base then become the principal square root.
In the same way, we find the cube root of a number by writing the number with an index of 3 and the base becomes the cube root of the given number.
For instance:

![64=4^3\implies 4=\sqrt[3]{64}](https://tex.z-dn.net/?f=64%3D4%5E3%5Cimplies%204%3D%5Csqrt%5B3%5D%7B64%7D)
Answer:
What are the phrases?
Step-by-step explanation:
5. Five: A ray has one endpoint and extends indefinitely in one direction. A pair of opposite rays are two rays that have the same endpoint and extend in opposite directions. Rays are always named with two points and the first point in the name must be the endpoint.
The triangle has a base of 4 and a height of 2.