Pre Calculus: Trigonometric Functions question?
by Tila on Nov.18, 2011, under Green Laser
Pre Calculus: Trigonometric Functions question?
Suppose you need to find the height of a tall building.Standing 15 m away from the base of the building, you aim a laser pointer at the closes part of the top of the building. You measure that the laser pointer is 7 degrees tilted from pointing straight up. The laser pointer is held 2 m above the ground. How tall is the building?
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