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Sullivan PreCalculus Section 7

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Presentation on theme: "Sullivan PreCalculus Section 7"— Presentation transcript:

1 Sullivan PreCalculus Section 7
Sullivan PreCalculus Section 7.1 Applications Involving Right Triangles Objectives of this Section Solve Right Triangles Solve Applied Problems

2 c a b To solve a right triangle means to find the missing lengths of its sides and the measurements of its angles.

3 c 4 b

4 h 25

5 Yola just planted a Hybrid Elm
Yola just planted a Hybrid Elm. The nursery claims the tree grows 12 feet per year. Yola wants to verify the claim. She walks 100 feet from the base of the tree and, using a transit that is 2 feet off the ground, determines the angle of elevation is 5.7o. One year later, the angle of elevation 100 feet from the tree is 11.9o. Is the nursery’s claim true?

6 g h 100 feet 2 feet h = height of tree above transit g = growth of tree during first year

7 Height of tree after 1 year:
= feet

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