A woman at a point A on the shore of a circular lake with radius R kilometer wants to arrive at the point B diametrically opposite on the other side of the lake in the shortest possible time (see the figure). She can walk at the rate of 5 kilometer per hour and row a boat at 3 kilometer per hour. 1- Find the total distance she must travel if she rows from A to C and walks from C to B.
A woman at a point A on the shore of a circular lake with radius R kilometer wants to arrive at the point B diametrically opposite on the other side of the lake in the shortest possible time (see the figure). She can walk at the rate of 5 kilometer per hour and row a boat at 3 kilometer per hour. 1- Find the total distance she must travel if she rows from A to C and walks from C to B.
Mathematics For Machine Technology
8th Edition
ISBN:9781337798310
Author:Peterson, John.
Publisher:Peterson, John.
Chapter63: Volumes Of Pyramids And Cones
Section: Chapter Questions
Problem 16A: A piece in the shape of a pyramid with a regular octagon (eight sided) base is machined from a solid...
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Ratios
A ratio is a comparison between two numbers of the same kind. It represents how many times one number contains another. It also represents how small or large one number is compared to the other.
Trigonometric Ratios
Trigonometric ratios give values of trigonometric functions. It always deals with triangles that have one angle measuring 90 degrees. These triangles are right-angled. We take the ratio of sides of these triangles.
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