☰ Contents · Geometry

Central symmetry and rotation

Lessons 17 · 1 lessons · B. Xaydarov, E. Sariqov, A. Qo‘chqorov. Geometry, Grade 9 (textbook for general secondary schools), revised 4th edition. Huquq va Jamiyat Publishing, Tashkent, 2019
Answers are for parents and teachers.
1
What is the y-coordinate of the point symmetric to N(−7; −2) about the origin?
2
Find the point symmetric to P(2; 4) about the centre O(−1; 1).
3
Name five centrally symmetric figures.
4
Under a central symmetry A(1; 3) goes to B(5; 7). Find the coordinates of the centre.
5
Why does central symmetry preserve distances?