How do you find the area of triangle ABC given A=70, b=4, c=12?
1 Answer
Mar 19, 2017
Explanation:
The area ( A ) of triangle ABC can be calculated using.
#color(red)(bar(ul(|color(white)(2/2)color(black)(A=1/2bcsinA)color(white)(2/2)|)))#
#"here " b=4,c=12" and angle "A=70^@#
#rArrA=1/2xx4xx12xxsin70^@#
#color(white)(xxxx)=24xxsin70^@#
#color(white)(xxxx)~~22.55" square units"#
