Question

Solve
с
D
1) ABCD is a cyclic quadrilateral in which AB is parallel
B
to DC and AB is a diameter of the circle.
A
Given ZBED = 65°;
E
[3]
calculate: (i) ZDAB (ii) ZBDC
dinmotor is the centre

Answer 1

Answer:

∠DAB = ∠BED = 65°

(Angle subtended by the same chord on the circle are equal)

(ii) ∠ADB = 90°

(Angle in a semicircle is a right angle)

∴ ∠ABD = 90° - ∠DAB = 90° - 65° = 25°

AB || DC

∴ ∠BDC = ∠ABD = 25° (Alternate angles)

Answer 2

Answer:

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