Polar and rectangular conversion. Game on.

Polar and rectangular conversion is a grade 12 math skill: convert between polar and rectangular coordinate representations of points and simple curves. Below are 3 practice questions with answers and step-by-step explanations, drawn from the 5 polar and rectangular conversion problems our math games drill.

5 questions in the bank
Kickoff

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Warm-upeasy

Which expression gives yy in terms of polar coordinates?

In polar coordinates, y=rsinθy = r\sin\theta.

Mid-gameeasy

Convert (5,12)(5,\, 12) to polar. Find rr.

r=52+122=25+144=169=13r = \sqrt{5^2 + 12^2} = \sqrt{25 + 144} = \sqrt{169} = 13.

Buzzer beatereasy

Convert (8,6)(8,\, 6) to polar. Find rr.

r=82+62=64+36=100=10r = \sqrt{8^2 + 6^2} = \sqrt{64 + 36} = \sqrt{100} = 10.

Overtime

2 more. Played, not assigned.

The rest of the bank lives inside live head-to-head matches — the placement test finds the right starting difficulty.

Drill it inside a game.

The free placement test finds your level, then every match serves polar and rectangular conversion questions at exactly the right difficulty.