If you're seeing this message, it means we're having trouble loading external resources on our website.

If you're behind a web filter, please make sure that the domains *.kastatic.org and *.kasandbox.org are unblocked.

Main content

High school geometry

Course: High school geometry > Unit 1

Lesson 6: Dilations
Math
High school geometry
Performing transformations
Dilations
© 2023 Khan AcademyTerms of usePrivacy PolicyCookie Notice

Dilations: scale factor

Google Classroom

Problem

Triangle triangle, A, prime, B, prime, C, prime is the image of triangle, A, B, C under a dilation with a scale factor of 2.
A first quadrant coordinate plane.A triange has vertices A at nine, five, B at nine, two, and C at seven, one.
What is the length of segment start overline, A, prime, B, prime, end overline?
  • Your answer should be
  • an integer, like 6
  • a simplified proper fraction, like 3, slash, 5
  • a simplified improper fraction, like 7, slash, 4
  • a mixed number, like 1, space, 3, slash, 4
  • an exact decimal, like 0, point, 75
  • a multiple of pi, like 12, space, start text, p, i, end text or 2, slash, 3, space, start text, p, i, end text
units
Stuck?
Stuck?