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Abbie23
Group Title
Find the length of a if the measure of angle A equals 62 degrees b = 15, and c = 21.
 2 years ago
 2 years ago
Abbie23 Group Title
Find the length of a if the measure of angle A equals 62 degrees b = 15, and c = 21.
 2 years ago
 2 years ago

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some1 Group TitleBest ResponseYou've already chosen the best response.1
dw:1338954330473:dw
 2 years ago

some1 Group TitleBest ResponseYou've already chosen the best response.1
Do you know if one of the angles are 90 degrees? I mean in the problem, not in the picture i just drew.
 2 years ago

Cortegu10 Group TitleBest ResponseYou've already chosen the best response.0
i seen this prob before
 2 years ago

some1 Group TitleBest ResponseYou've already chosen the best response.1
ok then i'm not sure. Because you can use sin, cos, tan only when it's a right triangle. sorry :(
 2 years ago

dpaInc Group TitleBest ResponseYou've already chosen the best response.1
dw:1338954774600:dw
 2 years ago

dpaInc Group TitleBest ResponseYou've already chosen the best response.1
do you know the law of cosines?
 2 years ago

AravindG Group TitleBest ResponseYou've already chosen the best response.1
ya use law of cosines
 2 years ago

Abbie23 Group TitleBest ResponseYou've already chosen the best response.0
Yes, it's Law of Cosines problem
 2 years ago

Cortegu10 Group TitleBest ResponseYou've already chosen the best response.0
use law of sine here
 2 years ago

dpaInc Group TitleBest ResponseYou've already chosen the best response.1
a^2 = 21^2 + 15^2  2*21*15cosA
 2 years ago

AravindG Group TitleBest ResponseYou've already chosen the best response.1
\[\huge \cos A =\frac{b^2+c^2a^2}{2bc}\]
 2 years ago

AravindG Group TitleBest ResponseYou've already chosen the best response.1
no rewards?
 2 years ago

Abbie23 Group TitleBest ResponseYou've already chosen the best response.0
Everyone gets one!
 2 years ago

AravindG Group TitleBest ResponseYou've already chosen the best response.1
bt i didnt get any medals :(
 2 years ago
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