Problem 9's answer is choice C) rotation then reflection
Problem 10's answer is choice B) 65 degrees
---------------------------------------------------------
Explanations:
For problem 9, we rotate 90 degrees clockwise to go from figure 1 to figure 2. Then we reflect over the x axis to go from figure 2 to figure 3.
------------
For problem 10, notice how
angle AEB = angle GEC
5x = 3x+10
5x-3x = 10
2x = 10
x = 5
If x = 5, then
angle GEC = 3x+10
angle GEC = 3*5+10
angle GEC = 15+10
angle GEC = 25
So that means
angle FEG = 90 - (angle GEC)
angle FEG = 90 - 25
angle FEG = 65 degrees
