Question #18884

find the slope and length of each side of the following triangles to determine the classification
a= (-3,1) b=(2,3) c=(4,3)

Expert's answer

|ab|=sqrt(25+4)=sqrt(29)

|ac|=sqrt(49+4)=sqrt(53)

|bc|=sqrt(4+0)=2

slope:

ab: arctan(2/5)

ac: arctan(2/7)

bc: arctan(0/2)=0

|ac|=sqrt(49+4)=sqrt(53)

|bc|=sqrt(4+0)=2

slope:

ab: arctan(2/5)

ac: arctan(2/7)

bc: arctan(0/2)=0

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