7.3 Activity: Discovering A Similarity Postulate • Draw triangle ABC with m<A = 60 and m<B = 40 • Draw another triangle DEF with m<D =60 and m<E = 40, and DE > AB. • Copy and complete the chart below: ABC DEF Ratio AB = ? DE= ? BC = ? EF = ? CA = ? FD = ?
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7.3 Activity: Discovering A Similarity Postulate
• Draw triangle ABC with m<A = 60 and
m<B = 40
• Draw another triangle DEF with m<D =60 and m<E = 40, and DE > AB.
• Copy and complete the chart below: ABC DEF Ratio
If an angle of one triangle is congruent to an angle of a second triangle and the lengths of the sides including these angles are proportional, then the triangles are similar.