Introduction You have studied about triangles and their various properties in your earlier classes. You know that a closed figure formed by three intersecting lines is called a triangle. (‘T
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Congruence of Triangles You must have observed that two copies of your photographs of the same size are identical. Similarly, two bangles of the same size, two ATM cards issued by the same ba
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Criteria for Congruence of Triangles In earlier classes, you have learnt four criteria for congruence of triangles. Let us recall them. Draw two triangles with one side 3 cm. Are these triangles co
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Some Properties of a Triangle In the above section you have studied two criteria for congruence of triangles. Let us now apply these results to study some properties related to a triangle whose tw
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Some More Criteria for Congruence of Triangles You have seen earlier in this chapter that equality of three angles of one triangle to three angles of the other is not sufficient for the congruence
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