Question

On a coordinate plane, the coordinates of vertices R and T for a polygon are R(−6, 2) and T(1, 2). What is the length of Side RT of the polygon?

4 units

7 units

8 units

15 units

Answer 1

Answer : 7 units

There are two ways you can solve this problem:

1st way - Subtract the T's x coordinate by r's x coordinate.

1-(-6) = 1+6 = 7

2nd way - Graph the points than count the units between them.

[I attached a picture, I graphed ur points]

Answer 2

The length of Side RT of the polygon is
`7\ units`

Explanation:

we know that

the formula to calculate the distance between two points is equal to

`d=\sqrt{(y2-y1)^(2)+(x2-x1)^(2)}`

we have

`R(-6,2)\\T(1,2)`

substitute the values

`d=\sqrt{(2-2)^(2)+(1+6)^(2)}`

`d=\sqrt{(0)^(2)+(7)^(2)}`

`dRT=7\ units`