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 ...
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Math Puzzle for March 7, 2025
The secret to getting ahead is getting started. In the triangle above, segment BD is an angle bisector. Sides AB = 9x − 14, BC = 4x − 3, CD = 2x + 11 and AD = 5x + 2. Find the area of triangle ABD and ...
This section deals with 2D shapes and angles related to them. It might be worth looking at the National 4 Angles section before continuing. For any triangle, the three angles add up to \(180^\circ\).
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