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Finding the length of a side in a right-angled triangle

Trigonometry can be used to find the length of a side in a triangle. Trigonometry close trigonometryThe study of sides and angles in triangles. can be used to find a missing side in a right-angled ...
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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 ...
insider.si.edu

Geometric Model by A. Harry Wheeler, Angle Bisectors of a Triangle (Portion), Plane Dissection

Description This model of a part of a hinged dissection consists of two triangles hinged at a common vertex. Objects MA.304723.755, MA.304723.760, and MA.304723.804 form model 6TQ (angle bisectors of ...
insider.si.edu

Geometric Model by A. Harry Wheeler, Angle Bisectors of a Triangle (Portion), Plane Dissection

They form a partially hinged dissection. Objects MA.304723.755, MA.304723.760, and MA.304723.804 form model 6TQ (angle bisectors of a triangle). A drawing for this model, dated April 23, 1932, is in ...