Geometrymedium · Past Paper
What is the distance between the points (a cos theta, a sin theta) and (0, 0)?
Aa^2
Ba
C1
Da(cos theta + sin theta)
✓ Correct Answer: B — a
Distance = sqrt((a cos theta)^2 + (a sin theta)^2) = sqrt(a^2(cos^2 theta + sin^2 theta)) = sqrt(a^2 * 1) = a.
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