Answer
27.9
Work Step by Step
Use the distance formula:
$d=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}$
$d=\sqrt{(5-12)^2+(19-(-8))^2}$
$d=\sqrt{(-7)^2+(27)^2}$
$d=\sqrt{49+729}$
$d=\sqrt{778}$
$d=27.9$
Geometry: Common Core (15th Edition)
by Charles, Randall I.
Published by
Prentice Hall
ISBN 10:
0133281159
ISBN 13:
978-0-13328-115-6
Chapter 1 - Tools of Geometry - 1-8 Perimeter, Circumference, and Area - Practice and Problem-Solving Exercises - Page 67: 63
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