41.) Always, Sometimes, Never
a) A rhombus _________ has 2 lines of symmetry.
b) A pentagon _________ has 5 lines of symmetry.
c) If you were to draw an irregular octagon, there
will _________ be 8 lines of symmetry.
d) Under a reflection, a point _________ change
places.
e) Under a rotation, of 90 degrees, a point _________
change places.
42.) Consider the following four points A(4,1); B(7,3); C(5,3); D(0,5)
Find the location of each through 0, 90, 180, and 270 degree rotation.
1. Location of A at 0 degrees rotation:
2. Location of B at 0 degrees rotation:
3. Location of C at 0 degrees rotation:
4. Location of D at 0 degrees rotation:
5. Location of A at 90 degrees rotation:
6. Location of B at 90 degrees rotation:
7. Location of C at 90 degrees rotation:
8. Location of C at 90 degrees rotation:
9. Location of A at 180 degrees rotation:
10. Location of B at 180 degrees rotation:
11. Location of C at 180 degrees rotation:
12. Location of D at 180 degrees rotation:
13. Location of A at 270 degrees rotation:
14. Location of B at 270 degrees rotation:
15. Location of C at 270 degrees rotation:
16. Location of D at 270 degrees rotation:
43.) True or False
a) An octagon has 45 degrees rotation symmetry.
b) A figure that has no lines of symmetry does not
have rotation symmetry.
c) A quadrilateral with a pair of sides of equal
length has rotation symmetry.
d) A quadrilateral with two pairs of sides of equal
length has rotation symmetry.
46.) Graph the figure A and its images under three reflections. Write the coordinates for each figure in the chart below. Figure A has vertices at (4, -4), (5, -1), (8, 3), (8, 1), and (9, 0).
Line of Reflection | Vertices | General |
Original | (4, -4), (5, -1), (8, 3), (8, 1), (9, 0) | (a, b) |
x-axis | ||
y-axis | ||
y=x line |