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Circle theorems (part three)

Algebra
Algebra and Functions
Binary Operations
Calculus
Centre of Mass
Circular Motion
Collisions
Complex Numbers
Conics
Continuous Random Variables
Coordinate Geometry
Correlation and Linear Regression
Differentiation
Discrete and Continuous random variables
Discrete Random Variables
Dynamics
Elastic Strings and Springs
Equlibrium of a rigid body
Estimation and Sampling
First Order Linear Differential Equations
Functions
Geometry
Graph Transformations
Groups
Hyperbolic Functions
Hypothesis Tests
Inequalities
Integration
Kinematics
Length, Area & Volume
Linear combinations of random variables
Logarithmic and Exponential Functions
Logic
Matrix Algebra
Momentum and Impulse
Non-parametric tests
Number
Numerical Solution of Linear Differential Equations
Numerical solutions to equations
Permutations and Combinations
Polar Coordinates and Curves
Prior Knowledge
Probability
Proof by Mathematical Induction
Quadratics
Rational Expressions
Rational functions
Representing Data
Roots of Polynomial Equations
Second Order Linear Differential Equations
Sequences and Series
Series
Sets
Sketching Curves
Statics of a Particle
Statistical Approximations
Statistics
The Normal Distribution
Trigonometry
Vectors
Work, Energy and Power

In this tutorial, we learn about 2 more circle theorems:

-Tangents from a point have equal length
-Alternate segment theorem
We then go through various examples on how to calculate angles.