52= 2(w-8) + 2x
X is the unknown length because the question is only telling us one side of the rectangle
Answer:
0.1375
Step-by-step explanation:
Answer:
same variable and same exponent
Uhh, answer choices?
In any case, since 
is inscribed in a semicircle, it is a right triangle (due to the inscribed angle theorem). Thus, by the Pythagorean theorem, 
Now, the circumradius of a right triangle (the radius of the circle passing through all three of its vertices) is simply half its hypotenuse, so 
Answer:
154°
Step-by-step explanation:
They are alternate angles.
