What is the perimeter of a triangle with corners at #(3 ,4 )#, #(4 ,2 )#, and #(8 ,7 )#?

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Answer 1 · 2017-01-06T07:55:50

#"the perimeter of triangle is :"14.47" units"#

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#"let sides of triangle be a,b,and c"#

#"perimeter of the triangle is s=a+b+c"#

#a=sqrt(5^2+4^2)=sqrt(25+16)=sqrt(41)#

#|a|=6.40" units"#

#b=sqrt(5^2+3^2)=sqrt(25+9)=sqrt(34)#

#|b|=5.83" units"#

#c=sqrt(2^2+1^2)=sqrt(4+1)=sqrt(5)#

#|c|=2.24" units"#

#s=6.40+5.83+2.24#

#s=14.47" units"#