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1. |
Two lines intersect at an angle of 62°. What is the angle of rotation? |
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A. |
31° |
B. |
248° |
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C. |
124° |
D. |
62° |
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Hint |
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2. |
Two intersecting lines have a rotation angle of 80°. What is the measure of the angle formed by the intersecting lines? |
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A. |
80° |
B. |
180° |
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C. |
160° |
D. |
40° |
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Hint |
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3. |
 has vertices A(3, 7), B(-2, 1), and C(4, -1). Suppose the triangle is rotated 180° to form  . What are the coordinates of B'? |
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A. |
(-2, -1) |
B. |
(2, -1) |
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C. |
(2, 1) |
D. |
(1, -2) |
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Hint |
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4. |
If two lines intersect at an angle of 23°, what is the angle of rotation? |
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A. |
67° |
B. |
46° |
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C. |
32° |
D. |
16.5° |
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Hint |
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5. |
Which is not a true statement about rotations? |
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A. |
A rotation maintains collinearity. |
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B. |
A rotation maintains angle measure. |
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C. |
A rotation maintains orientation. |
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D. |
A rotation maintains distance measure. |
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Hint |
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