Home Order Products Login Online Courses Search Contact Us
Update Profile
Sign Up
Current Curriculum
kwizNET Subscribers, please login to turn off the Ads!
Email us to get an instant 20% discount on highly effective K-12 Math & English kwizNET Programs!

Online Quiz (Worksheet A B C D)

Questions Per Quiz = 2 4 6 8 10

Geometry
7.5 Rotation

Rotation turns a figure about a fixed point, called the center of rotation. Rays drawn from the center of rotation to a point and its image form the angle of rotation. Rotations can be clockwise or counterclockwise.

Coordinate Rules for Rotations about the origin:
When a point (a,b) is rotated counterclockwise about the origin, the following rules are true:
  1. For a rotation of 900 (x,y) ® (-y, x).
  2. For a rotation of half turn or 1800 (x,y) ® (-x, -y).
  3. For a rotation of 2700 (x,y) ® (y, -x).
When a point (a,b) is rotated clockwise about the origin, the following rules are true:
  1. For a rotation of 900(x,y) ® (y, -x).
  2. For a rotation of half turn or 1800 (x,y) ® (-x, y).
Examples of figures rotated counterclockwise direction 900, 1800 and 2700:
Directions: Use a graph paper and rotate the following figures for 900, 1800 and 2700 about the origin. Also list the coordinates of the vertices of the image:

Using above data and choose the correct answer. Also write at least 5 examples of your own.
Q 1: Find the image of (3,4) in the half turn about the origin.
(3,-4)
(-3,-4)
(-3,4)

 Q 2: Find the image of (4,5) in the 900 counterclockwise direction.
(-4,5)
(4,-5)
(-5,4)

Q 3: Find the image of (5,8) in the half turn about the origin.
(-5,8)
(-5,-8)
(5,-8)

 Q 4: Find the image of (3, 5) in the 900 counterclockwise direction.
(-5,3)
(-3,5)
(3,-5)

Q 5: Find the image of (5,6) in the 900 clockwise direction.
(-5,6)
(-6,5)
(6,-5)

 Q 6: Find the image of (3,4) in the 900 clockwise direction.
(3,-4)
(-4,3)
(4,-3)

Question 7: This question is available to subscribers only!

 Question 8: This question is available to subscribers only!


Subscription to kwizNET Learning System offers the following benefits:

  • Unrestricted access to grade appropriate lessons, quizzes, & printable worksheets
  • Instant scoring of online quizzes
  • Progress tracking and award certificates to keep your student motivated
  • Unlimited practice with auto-generated 'WIZ MATH' quizzes
  • Child-friendly website with no advertisements
  • Choice of Math, English, Science, & Social Studies Curriculums
  • Excellent value for K-12 and ACT, SAT, & TOEFL Test Preparation
  • Get discount offers by sending an email to discounts@kwiznet.com

Quiz Timer

Educational Links Privacy Policy Terms of Service Contact Us