Mathematics for IGCSE & O level - Pythagoras' Theorem And Trigonometry (Section 2 - No. 7)
What type of triangles are used to determine the lengths and angles in three dimensions?
Isosceles Triangles
Equilateral Triangles
Right-angled Triangles
Scalene Triangles
Explanation
Right-angled triangles are essential for calculating lengths and angles in three dimensions.
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