Grade 9 · Geometry
This quiz helps revise “Geometric transformations” in Geometry for grade 9. It has 25 questions in five categories: Rigid motions, Symmetry, Translations & turns, Dilation & similarity, Coordinates. Questions get harder as the points go up, from 100 to 500.
The 100- and 200-point questions are open here. The rest show only their first words, and there are no answers: all of that is in the game itself.
What do we call a transformation that preserves the distance between every pair of points?
What happens to a segment's length under an isometry?
How is the image…
In the gameTwo distinct lines do…
In the gamePoints A, B, and…
In the gameWhat kind of line is the reflection axis for the segment joining a point to its image?
Where is the center of a point reflection relative to a point and its image?
Which point is the…
In the gameHow many lines of…
In the gameWhat must the number…
In the gameWhich transformation moves every point by the same vector?
Which transformation is equivalent to a 180° rotation about a point O?
What is the smallest…
In the gamePoint A(3, -2) is…
In the gamePoint A(2, 1) is…
In the gameWhich transformation with center O multiplies every distance from O by the same factor?
The scale factor is 1/2 and OA = 10 cm. What is OA'?
A 4 cm segment…
In the gameThe homothety factor is…
In the gameThe similarity scale factor…
In the game
Point A(3, -2) is reflected across the x-axis. What is its image?
Point A(-4, 5) is reflected across the y-axis. What is its image?
Point A(2, -7) is…
In the gameVector (-3, 4) is…
In the gamePoint A(-1, 3) undergoes…
In the gameAll 25 questions and the answers are in the game. Invite your class or friends with a link — guests need no account.