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Using angle bisector theorem to determine missing length of a triangle

👉 Learn how to solve with similar triangles. Two triangles are said to be similar if the corresponding angles are congruent ...
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Applying the properties of shapes to determine an angle

In the diagram below, AB is the chord of a circle with centre O. OM is perpendicular to AB (meet at a right angle). Look at triangles OAM and OBM. The hypotenuses (OA and OB) are the same, as they are ...