Tao Nan School P5 SA2 2007 Math Q44

ACEG is a square, not drawn to scale. Lines DF, CG and BH are parallel lines. Angle EFD is 45 degrees. Calculate
a) Angle CDF
b) Angle AHB



Solution

a)
Angle EDF = (90 – 45) degrees
= 45 degrees

Angle CDF = (180 – 45) degrees
= 135 degrees (Answer)


b)
Angle EFD = Angle AHB = 45 degrees (Answer)