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Mathematics 20 Online
OpenStudy (anonymous):

Given mC = 60° and mB = 30°. If BC = 12 cm, then find AC.

OpenStudy (anonymous):

OpenStudy (anonymous):

this is a 30-60-90 triangle which has sides with the ratio a-2a-a√3 where 2a is the hypotenuse, a is the short side and a√3 is the longer side (non hypotenuse). In your problem 2a = 12 so the shorter side equals 12/2 or 6.

OpenStudy (amistre64):

12 sqrt(3)

OpenStudy (amistre64):

doh!!...hold on to that lol

OpenStudy (anonymous):

AB would be 12√3 but AC is 6

OpenStudy (amistre64):

6; I had my triangle backwards lol

OpenStudy (anonymous):

Random announcement: Its finally not raining.

OpenStudy (amistre64):

yay!!...send out a raven or a dove to check for olive oil

OpenStudy (anonymous):

bahaha.

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