Interior angles in a triangle add up to 180Ëš. Triangles close triangleA polygon with three straight sides. have three sides, therefore they have three angles. Interior angles in a triangle sum to a ...
Learn about transformations and enlargements with BBC Bitesize KS3 Maths. WATCH: What are congruent and similar shapes? A simple guide explaining the idea of congruent and similar shapes, aimed at ...
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