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Chapter 8: Q. 5 (page 540)
Find the area of each triangle. Round answers to two decimal places
The area of the triangle is
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Circumscribing a TriangleShow that
where is the radius of the circle circumscribing the triangle PQR whose sides are a, b, and c, as shown in the figure.
The hypotenuse of a right triangle is 5 inches. If one leg is 2 inches, find the degree measure of each angle.
Finding the Height of the Bridge over the Royal Gorge The highest bridge in the world is the bridge over the Royal Gorge of the Arkansas River in Colorado. Sightings to the
same point at water level directly under the bridge are taken from each side of the 880-foot-long bridge, as indicated in the figure. How high is the bridge?
Solve each triangle.
A special case of the Law of Cosines is the Pythagorean theorem.
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