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Excel in math and science
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Geometry
Isometries
Excel in math and science
Master concepts by solving fun, challenging problems.
It's hard to learn from lectures and videos
Learn more effectively through short, conceptual quizzes.
Our wiki is made for math and science
Master advanced concepts through explanations,
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Concept Quizzes
If the point \((3, 11)\) is rotated \(90^\circ\) counterclockwise about the origin, what are the coordinates of the new point?
Excel in math and science
Master concepts by solving fun, challenging problems.
It's hard to learn from lectures and videos
Learn more effectively through short, conceptual quizzes.
Our wiki is made for math and science
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by Brilliant Staff
If the point \((6, 3)\) is rotated \(180^\circ\) counterclockwise about \((2,9),\) what are the coordinates of the new point?
Excel in math and science
Master concepts by solving fun, challenging problems.
It's hard to learn from lectures and videos
Learn more effectively through short, conceptual quizzes.
Our wiki is made for math and science
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by Brilliant Staff
If the point \((2, 9)\) is rotated \(90^\circ\) counterclockwise about \((1,1),\) what are the coordinates of the new point?
Excel in math and science
Master concepts by solving fun, challenging problems.
It's hard to learn from lectures and videos
Learn more effectively through short, conceptual quizzes.
Our wiki is made for math and science
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by Brilliant Staff
After counterclockwise rotation by \(270^\circ\) about \((1, 2),\) the coordinates of the point changes by \((5, 4).\) What is the point before rotation?
Excel in math and science
Master concepts by solving fun, challenging problems.
It's hard to learn from lectures and videos
Learn more effectively through short, conceptual quizzes.
Our wiki is made for math and science
Master advanced concepts through explanations,
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by Brilliant Staff
If the point \((8, 3)\) is rotated \(270^\circ\) counterclockwise about the origin, what are the coordinates of the new point?
Excel in math and science
Master concepts by solving fun, challenging problems.
It's hard to learn from lectures and videos
Learn more effectively through short, conceptual quizzes.
Our wiki is made for math and science
Master advanced concepts through explanations,
examples, and problems from the community.
Used and loved by 4 million people
Learn from a vibrant community of students and enthusiasts,
including olympiad champions, researchers, and professionals.
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That seems reasonable.
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by Brilliant Staff