Answer:
C. R = 17.9 degrees
Step-by-step explanation:
We have a rectangle triangle with the adjacent side and the opposite side (neither of which are the hypotenuse).
The relation between those elements is the tangent:

So, to isolate the angle, we modify the formula as such:

If we round 17.87 degrees to the tenth... we get 17.9 degrees.
Answer:
D) 2
Step-by-step explanation:
A Triangle two sides added together must always be greater than the other side.
It can not be 2 because the two sides of a triangle added are not greater than the other side.
Here 5 + 2 = 7 which is not greater than 7 on the other side, so 2 fails.
Answer:
2.2360679775
that's what I counted and got yep u know I was wrong.
Not entirely, it could be an isoceles triangle (a triangle which all sides are different lengths) but there is still a possibility.