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anonymous
 one year ago
GIVE MEDAL AND BECOME FAN!!!
In ∆ABC, BC = 4 centimeters, m B = m C, and m A = 20°. What is AC to two decimal places?
9.32 centimeters
10.01 centimeters
11.52 centimeters
12.09 centimeters
anonymous
 one year ago
GIVE MEDAL AND BECOME FAN!!! In ∆ABC, BC = 4 centimeters, m B = m C, and m A = 20°. What is AC to two decimal places? 9.32 centimeters 10.01 centimeters 11.52 centimeters 12.09 centimeters

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misty1212
 one year ago
Best ResponseYou've already chosen the best response.1dw:1436969052620:dw

misty1212
 one year ago
Best ResponseYou've already chosen the best response.1does that picture look right?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0yes but its confusing

misty1212
 one year ago
Best ResponseYou've already chosen the best response.1those two bottom angles are equal

misty1212
 one year ago
Best ResponseYou've already chosen the best response.1no that is wrong, each are 80

misty1212
 one year ago
Best ResponseYou've already chosen the best response.1since \[80+80+20=180\]

misty1212
 one year ago
Best ResponseYou've already chosen the best response.1you good with that? now it is time for the law of sines

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0yea i did and im ready >:)

misty1212
 one year ago
Best ResponseYou've already chosen the best response.1\[\frac{AC}{\sin(80)}=\frac{4}{\sin(20)}\]

misty1212
 one year ago
Best ResponseYou've already chosen the best response.1so \[AC=\frac{4\sin(80)}{\sin(20)}\]

misty1212
 one year ago
Best ResponseYou've already chosen the best response.1use this http://www.wolframalpha.com/input/?i=4sin%2880%29%2Fsin%2820%29

misty1212
 one year ago
Best ResponseYou've already chosen the best response.1you need a calculator to do it anyway might as well use wolfram if you scroll down you will see the answer is about \(11.52\)

misty1212
 one year ago
Best ResponseYou've already chosen the best response.1\[\huge \color\magenta\heartsuit\]
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