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anonymous
 one year ago
WILL MEDAL AND FAN! In Triangle ABC, m<A=43 degrees, m<B=62 degrees, and BC=22 in. What is AB to the nearest tenth of an inch?
anonymous
 one year ago
WILL MEDAL AND FAN! In Triangle ABC, m<A=43 degrees, m<B=62 degrees, and BC=22 in. What is AB to the nearest tenth of an inch?

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butterflydreamer
 one year ago
Best ResponseYou've already chosen the best response.1first draw out a triangle and label the information given to you in the question :)

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0dw:1433223149189:dw

butterflydreamer
 one year ago
Best ResponseYou've already chosen the best response.1exactlyyy! :) Good Okay so we want to work out the length AB right? So, before we can do this (by using the sine rule) we have to FIRSTLY work out the angle of C. Hint; Angle sum of a triangle = 180 And since we're given the other two angles, angle C = ?

butterflydreamer
 one year ago
Best ResponseYou've already chosen the best response.1yes now we can apply the sine rule since we have two angles and their corresponding sides :) dw:1433223771770:dw

butterflydreamer
 one year ago
Best ResponseYou've already chosen the best response.1Sine rule to find the length of a side is given by the formula: dw:1433223826060:dw

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0So how do I figure that out?

butterflydreamer
 one year ago
Best ResponseYou've already chosen the best response.1well.. we have this formula: dw:1433223969779:dw

butterflydreamer
 one year ago
Best ResponseYou've already chosen the best response.1also when you plug it into the calculator, remember the question asks for the length of AB to the nearest tenth of an inch... meaning round it to 1 decimal point. Then you're all done :)

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Do you know of a online calculator that does that because mine doesn't let me put all that in?

butterflydreamer
 one year ago
Best ResponseYou've already chosen the best response.1.. you don't have a "sin" button on your calculator? LOL For questions like these, you'll definitely need one of these scientific calculators :) Anyway here is one: https://www.google.com.au/search?q=scientific+calculator+online&oq=scientific+calculator+online&aqs=chrome..69i57.4559j0j7&sourceid=chrome&es_sm=93&ie=UTF8

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0I get 10.2 and my calculator has sin but it wouldn't let me put the 75 after.

butterflydreamer
 one year ago
Best ResponseYou've already chosen the best response.1oh lol.. you're close. remember... if the number after 2 is 5 or above, we round up. SO 2 will become 3. Therefore it will be 10.25 and we round it to 1 dp, therefore 10.3

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0My choices are 28.5 in 15.6 in 14.1 in 31.2 in What do I do?

butterflydreamer
 one year ago
Best ResponseYou've already chosen the best response.1oh.. hmm give me a minute.. maybe i did something wrong

butterflydreamer
 one year ago
Best ResponseYou've already chosen the best response.1i just redid the question and i still end up with 10.3 in SO maybe you made a typo in the question?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Nope I just double checked it matches exactly with my question.
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