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:
![P6 / Nan Hua / 2021 / SA2 / Paper 1 – Q01 [1 mark]](https://i0.wp.com/sgprimaths.com/wp-content/uploads/2022/08/P6_SA2_2021_Nan_Hua_Paper1_Q01-Qns.jpg?resize=400%2C260&ssl=1)
