Approximately 112.8° The angle formed by the triangular side faces of the Great Pyramid of Giza is approximately 112.8°.
A worksheet on determining the type of a given triangle with respect to its interior angles (acute-angled, obtuse-angled, right-angled) and with respect to its sides (scalene, isosceles, equilateral).
A worksheet on the triangle exterior angle theorem. The exercises require to find missing angles by using the triangle exterior angle theorem. Detailed solutions are included. Master the exterior ...
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