**UNDER CONSTRUCTION**

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**UNDER ****CONSTRUCTION**

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Fibonacci, **also called Leonardo Pisano. ****(born c. Pisa, Italy in 1170 and died after 1240), **** ****medieval **

**Italian mathematician who wrote **

**Liber abaci (1202; “Book of the Abacus”), the first European work on Indian and Arabian ****mathematics.**

**If a line is drawn from the centre of a circle perpendicular to a chord, then it bisects the chord.**

**The perpendicular bisector of a chord passes through the centre of the circle.**

**Angles in the same segment of a circle are equal.
If a quadrilateral is cyclic, then the opposite angles are supplementary.
If two tangents are drawn from the same point outside a circle, then they are equal in length.
The angle between a tangent to a circle and a chord drawn from the point of contact is equal to an angle in the alternate segment.
Summary**

**Theorems as per Grade 11 CAPS document**