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BBC2 年

How to find the area of a triangle - BBC Bitesize

Revise how to calculate the area of a triangle. Learn how to calculate the triangle's area by first finding the area of a rectangle in this BBC Bitesize maths guide.
BBC5 年

Trigonometry - Edexcel The area of a triangle - Higher - BBC

Revise trigonometric ratios of sine, cosine and tangent and calculate angles in right-angled triangles with this Bitesize GCSE Maths Edexcel guide.