0.523598775598299 lol I believe
Answer:

Step-by-step explanation:
We need to find the value of x so that the value of given function becomes 21 .
We have ,

Now , for finding x ,
1. Angle DEF
2. Definition of congruent angles
3. The measure of angle GHI
Answer:
75 points
Step-by-step explanation:
45÷60%×100%=75 points in total