Math Check

I need someone to please check this for me. Thanks! :)

Question: Tonto Pagalies (brother to vaporized racer Teento), an observer at Bindy Bend, is 14285’ from Desert Plain. He knows that there is a right angle between the lines of sight from Bindy Bend to Desert Plain and from Desert Plain to Beggar’s Canyon. He also observes the angle between Desert Plain and Beggar’s Canyon to be 22˚.

a. Find the line of sight distance from Desert Plain to Beggar’s Canyon.

b. Find the line of sight distance from Beggar’s Canyon to Bindy Bend.

My answers:

1.)

Part a:
d = 14285 * tan(22º18')
= 5859

Part b:
d = 14285 / cos(22º18')
= 15440

2.) (I used the Cosine Law)
d = 15440^2 + 9650^2 - 2*15440*9650*cos(112º10')
= 605651637

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  1. Oh and this a worksheet. It's called "Pod Racing" and it's on Google if you need to see it up close. :)

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  2. (a) and (b) seem to be ok

    I don't know what (2) is supposed to be, but that's d^2, not d.

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  3. Oh yeah, I'm sorry about that. It is suppose to be d^2; I made a typo error. So would you say that #1 and #2 are done right?

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