Question

(RLT.G.3.a, 1 pt) Given the endpoints S(-1,8) and T(7.-9), calculate the length of line segment ST? 9 S8 -5 4 Nw 1 -9-8-7 -6 -5 -4 -3 -2 -19 1 2 4 5 6 7 8 9 -1 -2 -3 -5 -6 -7 -8 T -9 O A. 18.8

Answer 1

The length is given as

= √ (x2 - x1)^2 + (y2 - y1)^2

= √ (7 - - 1)^2 + (-9 -8)^2

= √ 8^2 + (-17)^2

= √ 64 + 289

= √ 353

= 18.78

= 18.8