along the circumference from C to B^ the line continuallyincreases. Note. The proposition holds good if A be on thecircumference. AC then becomes zero, and AB becomesthe diameter; and the continual increase of the linebecomes the continual increase of the chord of a cirrdeas it gets nearer and… … Let ABC be a circle with centre 0, and let ADB l>ean arc. and C any point on the rest of the circumference.Then the ZAOB (if the centre is double the ZACB ((tthe circumferen ee. Join CO, and produce it to E. Then •.• OA = OC, the ZOAC= ZOCA. But ZAOE= ZOAC+ ZOCA; .. ZAOE = twice ZOCA. Similarh…
Geometry · Geometry, Plane
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