Find Triangle Sides and Angles (using Law of Cosines and Law of Sines)
Sunday, April 8th, 2007This program finds the remaining sides and angles of a triangle, given any combination of three sides or angles. This program uses the Law of Cosines and Law of Sines to find the remaining sides and angles.
Find-Triangle-Sides-and-Angles Program Walkthrough #1:
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Give any combination of three sides or angles. Enter zero for each of the three unknown sides or angles. In this example, three sides are given.
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All three sides and angles of the described triangle are calculated and displayed. The letters in parentheses are the variables in which the values have been saved.
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The type of given data is displayed along with the formula that was used. In this case, the data given was Side-Side-Side, and the Law of Cosines was used to calculate the unknown angles.
Find-Triangle-Sides-and-Angles Program Walkthrough #2:
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Give any combination of three sides or angles. Enter zero for each of the three unknown sides or angles. In this example, two sides and one angle are given.
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Notice that two triangles are possible from the data given. Both scenarios are calculated and displayed. The letters in parentheses are the variables in which the values have been saved.
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The type of given data is displayed along with the formula that was used. In this case, the data given was Side-Side-Angle, and the Law of Sines was used to calculate the unknown side and angles.