Question

What is the value of x in the triangle?

45°
7
X
45°
A. 7
B. 14
C. 7root 2
D 7 root 2 / 2

Answer 1

There are a few (a very few) angles that have relatively "neat" trigonometric values, involving, at worst, one square root. Because of their relatively simple values, these are the angles which will typically be used in math problems (in calculus, especially), and you will be expected to have these angles' values memorized.

Explanation:

Answer 2

C

Explanation:

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