Prove two triangles are congruent by showing they satisfy one of four criteria. Find missing lengths by using the scale factor. The relationship between similar shapes may be expressed as a ratio.
1. Complete the following statements: (a) Two line segments are congruent if _____. (b) Among two congruent angles, one has a measure of 70°; the measure of the other angle is _____. (c) When we write ...
CBSE: Check important extra questions for the upcoming CBSE Class 9 Maths exam 2020-21 from Chapter 7 Triangles of Class 9 Maths NCERT textbook. Answers to all the problems are also available here.
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