Grade 9 Mathematics Module 7 Triangle Trigonometry
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Nov 08, 2014 · c. Using the Pythagorean theorem: a2 + b2 = c2 a2 + (17)2 = (23)2 a2 + 289 = 529 a2 = 529 -289 a2 = 240 a = 240 a = 15.49 B. Solving a Right Triangle Given the Length of the Hypotenuse and the Measure of One Acute Angle Example: Triangle BCA is right-angled at C if c = 27 and ∠A = 58°, find ∠B, b, and a. 17. 18. Solution: a.
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