Using only elementary geometry, determine angle x. Provide a step-by-step proof.
You may only use elementary geometry, such as the fact that the angles of a triangle add up to 180 degrees and the basic congruent triangle rules (side-angle-side, etc.). You may not use more advanced trigonomery, such as the law of sines, the law of cosines, etc. There is a review of elementary geometry below.
Welcome to the Internet School Library Media Center mathematics page. You will find mathematics history, organizations, puzzles and games, tutorials, lesson plans, math education and more on this page. Separate pages are devoted to geometry, algebra, calculus, statistics. Be sure to preview all categories to find information you need since content will be distributed across different categories. You can search this site, use an index or sitemap.
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Using only elementary geometry, determine angle x. Provide a step-by-step proof. You may only use elementary geometry, such as the fact that the angles of a triangle add up to 180 degrees and the basic congruent triangle rules (side-angle-side, etc.). You may not use more advanced trigonomery, such as the law of sines, the law of cosines, etc. There is a review of elementary geometry below.
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