Answer:

Step-by-step explanation:
The figure shows a right triangle.
To calculate the measure of the angle A, you can use the inverse trigonometric function arctangent:

Identify the angle
, the opposite side and the adjacent side:

Substitute into
.
The measure of the angle A is:

Rounded to the nerarest hundreth:

Answer: D
Step-by-step explanation: A is not possible because the shape and the way it is drawn is nearly the same as the figure given. The shape of B is different from the given shape. C is a little too flat to be considered symmetrical to the figure. Which leaves only option D.
Hope this helped :D
Answer:
39.5 degrees
Step-by-step explanation:
180-101=79
79/2=39.5
the common ratio is 0.99 i belive that is the answer
-9+x=38
+9. +9
x=47 dats all