Question

I NEED HELP ASAP !!!!!!!!!!!

Answer 1

4.3

Explanation:

The answer above is correct.

Answer 2

4.3

Explanation:

J(7,8) , K(1,2) , L(5,2)

Centroid of △ =>
`(x,y)=((x+1+x2+x3)/(3),(y+1+y2+y3)/(3))`

( x , y ) =
`((7+1+5)/(3),(8+2+2)/(3))`

M ( x , y ) =
`((13)/(3),4)`

Distance between points K and N =>
`√((x_1-x_2)^2+(y_1-y_2)^2)`

=>
`\sqrt{(7-(13)/(3))^2+(8-4)^2`

=>
`\sqrt{((21-13)/(3))^2+(4)^2`

=>
`\sqrt{((8)/(3))^2+16`

=>
`\sqrt{(64+144)/(9) }`

=>
`\sqrt{(208)/(9) }`

=>
`(4)/(3) √(13)`

=> 4.3