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Today class, five student will be presenting their theorem of choice.
Please be sure to take notes an all the presentations
The theorem I chose to present is the central angle theorem
The central angle theorem states that an angle in a circle which has its vertex at the circles center and touches the edge of the circle is equal to the angle of the opposite arc.
Angle = Arc
The theory I decided to present is the inscribed angle theorem
The angle measurement of the arc opposite the vertex is double the angle measurement of the vertex.
When the vertex of an angle is on the circumference of a circle and the two legs are also on the circumference, this is when you apply the inscribed angle theorem.
Angle = 1/2Arc
The theorem I chose to present is the tangent chord theorem.
This theorem is when a tangent and chord meet at a point on the circles circumference. The angle at which these points meet is half of the angle measurement of the opposite arc.
I will be explaining the tangent-tangent theorem.
This theorem proves that two tangents drawn from the same point to a circle’s circumference are equal in length
To finish the presentations, I will be talking about the tangent-secant theorem.
The formula is the secant squared is equal to the whole tangent multiplied by the part of the tangent not inside the circle.
The tangent-secant theorem proves that you can find the length of the tangent or secant using this formula
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