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Chapter 7: Problem 40

Describe how to identify the corresponding sides in similar triangles.

Short Answer

Expert verified
To identify corresponding sides in similar triangles, first ensure the triangles are indeed similar. Look for matching angles as an indication of similarity. The sides opposite these matching angles are the corresponding sides. The lengths of these sides will be proportional.

Step by step solution

01

Understanding The Concept of Similarity

Two triangles are similar if they have the same shape, but not necessarily the same size. This implies that these triangles will have identical angles and the lengths of their corresponding sides will be proportional. To elaborate, if the measures of all three angles of one triangle are congruent to the measures of all three angles of another triangle, the two triangles are similar.
02

Finding Corresponding Angles

In similar triangles, corresponding angles are equal. This means that if we have two similar triangles, the angles of one triangle correspond and are equal to the angles of the other triangle. When looking at two similar triangles, identify these matching angles first.
03

Locating Corresponding Sides

After identifying the corresponding angles, we can identify the sides opposite these matching angles as corresponding sides. These sides will be proportional in length. The side corresponding to a particular angle in one triangle is the side that is opposite that angle.
04

Proportional Lengths of Corresponding Sides

The last step is to understand that in similar triangles the lengths of corresponding sides are proportional. This means that the ratio of any two corresponding sides in the two triangles is equal. If we have lengths \(a\), \(b\), and \(c\) in one triangle being proportional to lengths \(A\), \(B\), and \(C\) in another triangle, then \(\frac{a}{A} = \frac{b}{B} = \frac{c}{C}\)

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