On a coordinate plane, the coordinates of vertices R and T for a polygon are R(−6, 2) and T(5, 2). What is the length of Side RT
of the polygon?
1 answer:
Use the formula
D=sqrt[ (x2-X1)^2 + (Y2-Y1)^2]
= sqrt(11^2+0^2)=11.
Sqrt means square root.
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