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2010 AMC 10A Problem 7

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2010 AMC 10A Problem 7AMC 10 Step by Step

Name: Date: September 13, 2026

Triangles: Area & Pythagorean · difficulty 2 of 5 · about 2 min · position P1-10

Crystal has a running course marked out for her daily run. She begins this run by heading due north for one mile. She then runs northeast for one mile, then southeast for one mile. The last portion of her run takes her on a straight line back to where she started. How far, in miles, is this last portion of her run?

A)
$1$
B)
$\sqrt{2}$
C)
$\sqrt{3}$
D)
$2$
E)
$2\sqrt{2}$

2010 AMC 10A Problem 7

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