The distance between two points (x1, y1) and (x2, y2) is given by D = `sqrt((x2 - x1)^2 + (y2 - y1)^2)`
The point R has the coordinates (-3, 2) and T has the coordinates (4, 1).
Substituting these values in the formula for distance, the length of RT is...
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The distance between two points (x1, y1) and (x2, y2) is given by D = `sqrt((x2 - x1)^2 + (y2 - y1)^2)`
The point R has the coordinates (-3, 2) and T has the coordinates (4, 1).
Substituting these values in the formula for distance, the length of RT is `sqrt((4 + 3)^2 + (2 - 1)^2)`
=> `sqrt(7^2 + 1^2)`
=> `sqrt (49 + 1)`
=> `sqrt 50`
=> `5*sqrt 2`
The length of RT is `5*sqrt 2`