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Chapter 8: Q. 8 (page 516)
True or False In a right triangle, if we know the two acute angles, we can solve the triangle.
The solution is false.
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In the given problem solve the triangle using either the law of sines or law of cosines-
Area of an ASA Triangle If two angles and the included side are given, the third angle is easy to find. The area K of the triangle with side and angles A, B, and C is
Area of a triangle Prove the two other forms of the above formula.
and
Great Pyramid of Cheops One of the original Seven Wonders of the World, the Great Pyramid of Cheops was built about 2580 bc. Its original height was 480 feet 11 inches,
but owing to the loss of its topmost stones, it is now shorter. Find the current height of the Great Pyramid using the information given in the illustration.
Find the area of the triangle. Round answer to two decimal places.
Make up three problems involving oblique triangles. One should result in one triangle, the second in two triangles, and the third in no triangle.
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