ce theangles at the circumference are equal; and therefore(§ 14) the arcs are equal. Also equal arcs subtend equal angles at thecircumference. Foi-, tlie ai-cs being equal, the angkSat tlie centre are equal (§3 4). and therefore the anglesat the circumference are equal. Exercises. 1. What spuc-ial… … 172 Geometry. 3. C is any point on the arc of a segment whose chord is AB.Show that the sum of the angles CAB, CBA is constant. 4. A circle is divided into two segments by a chord equal to theradius. What is the angle in each segment ? What relation do younote between these two angles ? 5. ABCD is…
Geometry · Geometry, Plane
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