P6 / Red Swastika / 2020 / SA2 Prelims / Paper 2 – Q12 [4 marks]

Question:

In the figure below, ABCD and AFED are trapeziums, CE = EF, ∠ADC = 62°, ∠DCE = 42° and ∠CEF = 80°.
(a) Find ∠ACD.
(b) Find ∠ACB.
(c) Peter claims that CD is perpendicular to DE.
Do you agree with Peter? Tick Yes or No.
Name the angle that can be used to check for the answer.

Solution: