Identify the type of angles in the triangle. Acute angles (less than 90°). Right angle (exactly 90°), marked with a square. Obtuse angles (greater than 90° and less than 180°). Using the ...
The sides of right-angled triangles are labelled opposite, hypotenuse and adjacent. Trigonometry explores the relationship between sides and angles in right-angled triangles. The hypotenuse is the ...
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