Find the angle of elevation of the sun when a 60-foot flagpole casts a shadow 72 feet long. 11. ... From the top of a cliff 200 feet above a lake, the angle of depression to a small boat on the lake is 18Ad. ... SOLVING A RIGHT TRIANGLE In working a word problem, we are usually asked to find only one or two of the unknowns.

Title | : | Practical Mathematics |

Author | : | Russell V. Person, Vernon J. Person |

Publisher | : | John Wiley & Sons - 1977-01-01 |

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