Answer:
1) we know that line CFD is a straight line. So the angles on the line will add up to 180 degrees.
so, angle CFE + angle DFE = 180 degrees
angle CFE = 180 - angle DFE
CFE = 180 - 152
CFE = 28 degrees.
2) it is given that angle SPR and angle RPQ are complementary, that is, they add up to 90 degrees.
so, SPR + RPQ =90 degrees.
RPQ = 90 - angle SPR
RPQ = 90 - 37
RPQ = 53 degrees.
hope you understood :)
