Page 167 - Math Course 2 (Book 1)

The Distance Formula

Your Turn! Use the Distance Formula to Solve a Problem

GEOMETRY
Use the Distance Formula Find the perimeter of ΔXYZ to the nearest tenth.

Find the distance between A(–4, 5) and B(3, –9). A. 21.3 units y
Round to the nearest tenth, if necessary. B. 14.6 units A(2, 5)
C. 13.4 units C(–3, 1)
A. 4.1 D. 10.9 units
B. 8.1
C. 14.0
D. 15.7 Answer 0 x

Answer B(4, –2)

Real World Example

MAPS
The map of a college campus shows Gilmer Hall at
(7, 3) and Watson House dormitory at (5, 4). If each
unit on the map represents 0.1 mile, what is the
distance between these buildings?

A. 0.2 mi
B. 0.5 mi
C. 2.2 mi
D. 5 mi

Answer

159