1103161105
Level:
A
In the picture, there is letter F and a line \( o \). From the next pictures choose the one that shows an image of F in a line symmetry across the line \( o \).
Geometric mappings
1103161104
Level:
A
In the picture, there is an equilateral triangle and a line \( o \). From the next pictures choose the one that shows the triangle and its image in a line reflection across the line \( o \).
1103161103
Level:
A
How many lines of symmetry does the regular nonagon in the picture have?
\( 9 \)
\( 0 \)
\( 1 \)
\( 18 \)
1103161102
Level:
A
How many lines of symmetry does the parallelogram in the picture have?
\( 0 \)
\( 1 \)
\( 2 \)
\( 4 \)
1003161101
Level:
A
Given \( p \) is a line of reflection, which lines are mapped to themselves across the line \( p \)?
The line \( p \) and all lines perpendicular to \( p \) are mapped to themselves.
All lines parallel to the line \( p \) are mapped to themselves.
There are no lines which are mapped to themselves.
The line \( p \) only.
1103162405
Level:
B
An equilateral triangle \( ABC \) rotates \( 90^{\circ} \) anticlockwise about the point \( O(4;1) \). Which of the pictures shows the triangle \( A'B'C' \) that is the image of the rotated triangle \( ABC \)?
1103162404
Level:
B
An equilateral triangle \( ABC \) rotates \( 60^{\circ} \) anticlockwise about its centre \( S \). Which of the pictures shows the triangle \( A'B'C' \) that is the image of the rotated triangle \( ABC \)?
1103162403
Level:
B
An equilateral triangle \( ABC \) rotates \( 120^{\circ} \) clockwise about the vertex \( A \). Which of the pictures shows the triangle \( A'B'C' \) that is the image of the rotated triangle \( ABC \)?
1103162402
Level:
B
The rectangle \( ABCD \) rotates \( 90^{\circ} \) anticlockwise about the centre \( S \). Which of the pictures shows the rectangle \( A'B'C'D' \) that is the image of rotated rectangle \( ABCD \)?
1103162401
Level:
B
Suppose a square \( ABCD \) rotates about its vertex \( B \). Which of the given pictures shows the square \( A'B'C'D' \) that is the image of the square \( ABCD \) rotated \( 180 \) degrees?
