Congurency and Similarities

Subject: Compulsory Maths

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There is three easy way to prove similarity. If two pairs of corresponding angles in a pair of triangles are congruent, then the triangles are similar.
When the three angle pairs are all equal, the three pairs of the side must be proportion.
When triangles are congruent and one triangle is placed on the top of other sides and angles that are in the same position are called corresponding parts.
Congruent and similar shapes can make calculations and design work easier.