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Course: Pixar in a Box > Unit 14

Lesson 2: Mathematics of rotation
Computing
Pixar in a Box
Sets & staging
Mathematics of rotation
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Understanding rotation of arbitrary points

Google Classroom

Problem

The distance between point P and the origin, O, is r units. The line OP forms an angle of ϕ with the x-axis.
Point P′ is the result of rotating point P, θ degrees counter-clockwise around the origin.
The line AP′ forms a right angle with line OP.
If point P′ is at (x′,y′), y′ is equal to the length of which line segment?
Choose 1 answer: