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Introduction to similar triangles (view source)
Revision as of 09:22, 29 April 2019
, 09:22, 29 April 2019no edit summary
*Triangles are similar if their corresponding angles are congruent and the ratio of their corresponding sides are in proportion.
*Triangles are similar if their corresponding angles are congruent and the ratio of their corresponding sides are in proportion.
*To develop an ability to state and apply the definition of similar triangles.
*To develop an ability to state and apply the definition of similar triangles.
*recognize and apply “corresponding sides of similar triangles are proportional”.
*Recognize and apply “corresponding sides of similar triangles are proportional”.
===Estimated Time===
===Estimated Time===
45 minutes.
45 minutes.
#Two triangles are similar if they have: all their angles are equal or corresponding sides are in the same ratio
#Two triangles are similar if they have: all their angles are equal or corresponding sides are in the same ratio
#In similar triangles, the sides facing the equal angles are always in the same ratio. Application of this finds its use in finding the unknown lengths in similar triangles . For this :
#In similar triangles, the sides facing the equal angles are always in the same ratio. Application of this finds its use in finding the unknown lengths in similar triangles . For this :
##Step #1: Find the ratio of corresponding sides in pairs of similar triangles.
##Step #2: Use that ratio to find the unknown lengths.