Answer:

Step-by-step explanation:
is in the third quadrant
To find the reference angle subtract π from it, that is
reference angle =
- π = 
Answer:
<h2>
140°</h2>
solution,
Let <DEF= x°
<CDE= 2x°
<BAF= 90°
The sum of interior angle of hexagon= 720°
<A + <B + <C + <D + <E +<F = 720°

Again,

Hope this helps...
Good luck on your assignment..
Answer:
J: 84%.
Step-by-step explanation:
I don't really know how to explain this one.
9 because the square root of 81 is 9