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Cutiepo0
Group Title
How do you find the area of an acute triangle when you're only given the side lengths????
 3 years ago
 3 years ago
Cutiepo0 Group Title
How do you find the area of an acute triangle when you're only given the side lengths????
 3 years ago
 3 years ago

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amistre64 Group TitleBest ResponseYou've already chosen the best response.1
one way is; you can use the law of cosines to find an angle and use that angle in the side*side*sin(angle)/2 formula
 3 years ago

amistre64 Group TitleBest ResponseYou've already chosen the best response.1
the other is to use herons formula
 3 years ago

Cutiepo0 Group TitleBest ResponseYou've already chosen the best response.0
so the area = \[a timesb \times \sin \] of the angle contained between a and b?
 3 years ago

Cutiepo0 Group TitleBest ResponseYou've already chosen the best response.0
then, divided by two
 3 years ago

amistre64 Group TitleBest ResponseYou've already chosen the best response.1
thats right; so if you can find the angle between two sides, you can find the area
 3 years ago

Cutiepo0 Group TitleBest ResponseYou've already chosen the best response.0
okay! Thanks :)
 3 years ago

amistre64 Group TitleBest ResponseYou've already chosen the best response.1
in my picture; base = b; height = a sin(angle) which fits into the normal Area = b*h/2 that you are familiar with
 3 years ago
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