Calculate the perimeter of a triangle with vertices (-9,-1)(-1,-1)(6,5)

34.79 (length units)

Step-by-step explanation:

To calculate the perimeter, we need to add up all the sides.

We use Pythagoras Theorem to calculate the side, taking the differences of the coordinates of the vertices, squaring and taking square-root.

Side 1:  between (-9, -1) and (-1,-1)

Differences in coordinates: 8,0 => length = 8

side 2: between (-1,-1), (6,5)

differences in coordinates: 7,8, => length = sqrt(7^2+8^2) = sqrt(113)

side 3: between (6,5), (-9,-1)

differences in coordinates: 15,6 => length = sqrt(15^2+6^2) = 3sqrt(29)

Perimeter

= 8 + sqrt(113) + 3sqrt(29)

= 8 + 10.63 + 16.16

= 34.7856

you'll have to attache the image of the bar graph in order for us to answer : )

step-by-step explanation: