Notes on arc lengths and areas of sectors
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Notes on Arc Lengths and Areas of Sectors. Precalculus 5.1. 5.1. Examples. Examples. II. Arc Lengths. ***When using this formula, you must be in radians!!. Examples:. Find the length of the arc intercepted by a central angle having each of the following measures . Examples.

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Notes on arc lengths and areas of sectors

Notes on Arc Lengths and Areas of Sectors

Precalculus 5.1





Ii arc lengths
II. Arc Lengths

***When using this formula, you must be in radians!!


Examples2
Examples:

  • Find the length of the arc intercepted by a central angle having each of the following measures.



Word problems
Word Problems

Reno, NV, is due north of Los Angeles. The latitude of Reno is 40° N, while the latitude of Los Angeles is 34° N. If the radius of the Earth is 6400 km, find the north-south distance between the two cities.


Word problems1
Word Problems

Given the picture of the pulley with the weight, answer the following:

How many inches will the weight rise if the pulley is rotated through an angle of 71° 50’ ?



Notes on arc lengths and areas of sectors

PART B:

Through what angle, to the nearest minute, must the pulley be rotated to raise the weight 6 in?

Remember:


Iii areas of sectors
III. Areas of Sectors

***When using this formula, you must be in radians!!


Examples remember
ExamplesRemember:


Examples remember and
ExamplesRemember: and