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BBC2 年

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 ...
BBC5 年

Angles in triangles and quadrilaterals - KS3 Maths - BBC Bitesize

To find the missing angles in an equilateral triangle, divide the sum of interior angles in a triangle by 3 In an isosceles triangle, two of the sides are equal.