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Chiomatn93
Group Title
find the area of the triangle whose sides have the given lengths.
a=9, b=12, c=15
 2 years ago
 2 years ago
Chiomatn93 Group Title
find the area of the triangle whose sides have the given lengths. a=9, b=12, c=15
 2 years ago
 2 years ago

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shivam_bhalla Group TitleBest ResponseYou've already chosen the best response.0
Do you know Heron's formula @Chiomatn93 ? Apply that and you will get your answer
 2 years ago

shivam_bhalla Group TitleBest ResponseYou've already chosen the best response.0
http://en.wikipedia.org/wiki/Heron%27s_formula
 2 years ago

ipm1988 Group TitleBest ResponseYou've already chosen the best response.1
\[s= (9+12+15)/2 =18 now by heron's formula Area=\sqrt{18* (189) (1812)(1815)}\] \ [\sqrt{18*9*6*3} = \sqrt{2916} = 54 therefore your area is 54
 2 years ago

Chiomatn93 Group TitleBest ResponseYou've already chosen the best response.0
whats the answer and how do u solve?
 2 years ago

ipm1988 Group TitleBest ResponseYou've already chosen the best response.1
Answer is 54
 2 years ago

shivam_bhalla Group TitleBest ResponseYou've already chosen the best response.0
@Chiomatn93 , Didn't you see the wiki link I gave above ?
 2 years ago

Chiomatn93 Group TitleBest ResponseYou've already chosen the best response.0
how do u solve it though? like the steps???
 2 years ago

shivam_bhalla Group TitleBest ResponseYou've already chosen the best response.0
Commo'n the formula is there, the quantities are given. Now can't you multiply and take the square root by yourself
 2 years ago

shivam_bhalla Group TitleBest ResponseYou've already chosen the best response.0
See the formula is \[Area = \sqrt{s(sa)(sb)(sc)}\] where \[s= {a+b+c \over 2}\] where a , b, c are the length of the sides of the triangle. First find s. then substitute to get your Area ??
 2 years ago

Chiomatn93 Group TitleBest ResponseYou've already chosen the best response.0
damn calm down...jeez i will do but i just want an example
 2 years ago

ipm1988 Group TitleBest ResponseYou've already chosen the best response.1
see my reply solution is there
 2 years ago

Chiomatn93 Group TitleBest ResponseYou've already chosen the best response.0
wheres the answer?
 2 years ago

ipm1988 Group TitleBest ResponseYou've already chosen the best response.1
Ok first you would have to take out the s that is semi perimerter formula for s is S= (a +b +c)/2 here the S is 18 Area of triangle is \[A=\sqrt{s*(sa)*(sb)*(sc)}\] So the area would be now \[A=\sqrt{18*(189)*(1812)*(1815)}\] \[A=\sqrt{18*5*6*3}\] \[A=\sqrt{2916}\] A=54 Therefore the area of triangle is A=54 which is your answer
 2 years ago

ipm1988 Group TitleBest ResponseYou've already chosen the best response.1
I cannot put it more simply
 2 years ago

Chiomatn93 Group TitleBest ResponseYou've already chosen the best response.0
thank you! i understand it much more now!
 2 years ago
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