The tangent of an angle in a right triangle is the opposite leg divided by the adjacent leg.
The opposite leg is 1 unit long. The adjacent is 2 units long.
1/2 is your answer.
The expression can be simplified to a polynomial of degree 2.

<h3>
How to simplify the expression?</h3>
Here we have the expression:

We can directly simplify this by taking the variable as common factor:

This is a polynomial, as you can see, the maximum exponent is 2, so the degree of the polynomial is 2.
If you want to learn more about polynomials:
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Answer:
EF = 19
Step-by-step explanation:
EF = (23 + 15)/2 = 19