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From Open Educational Resources
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, 12:40, 16 January 2018
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| [https://www.geogebra.org/m/GhGtuvV7 Similar triangles] | | [https://www.geogebra.org/m/GhGtuvV7 Similar triangles] |
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− | Two triangles are said to be similar, if their corresponding angles are equal or their corresponding sides are in proportion. | + | Two triangles are said to be similar, if their corresponding angles are equal or their corresponding sides are in proportion. |
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| + | These conditions for similarity of triangles can be explored by increasing/decreasing the length of sides, flipping/rotating the triangles given in this geogebra file. |
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| ==== 9. Tangents and Secants to a Circle ==== | | ==== 9. Tangents and Secants to a Circle ==== |