CAIE IGCSE Mathematics Core C4.6 Angles Topic Practice

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Covered syllabus points

C4.6.1 Angles at points and in polygonsC4.6.2 Angles in parallel linesC4.6.3 Regular polygon angles

Question 1

[Maximum number: 2]
Figure for Question 1 — CAIE IGCSE Mathematics Core

The diagram shows triangle BCE and a straight line ABCD.
BE=CE and angle DCE=118∘DCE=118^\circ.
Find the value of x.
x=

Question 2

[Maximum number: 2]



NOT TO SCALE

The diagram shows triangle ABC. M is the midpoint of AC.

Triangle ABC is rotated 180∘180^{\circ} about centre M. The image and the original triangle together form a quadrilateral ABCD.

Find angle BAD.

Question 3

[Maximum number: 1]
NOT TO SCALE

NOT TO SCALE

Show that two regular octagons and a square meet at a point without any gaps.

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