Geometry: Common Core (15th Edition)

Published by Prentice Hall

Chapter 1 - Tools of Geometry - 1-7 Midpoint and Distance in the Coordinate Plane - Practice and Problem-Solving Exercises - Page 54: 28

d=25

Work Step by Step

Use the distance formula: $d=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}$ $d=\sqrt{(5-12)^2+(12-(-12))^2}$ $d=\sqrt{(-7)^2+24^2}$ $d=\sqrt{49+576}$ $d=\sqrt{625}$ $d=25$

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