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CEMC Gauss (Grade 7), 2019 Difficulty 1.3 Junior Find the answer Canada
In the diagram, the value of k k k
Pick one
A 180 180 180 B 210 210 210 C 240 240 240 D 270 270 270 E 300 300 300
Solution One complete rotation equals 360 ° 360\degree 360°
Therefore, k ° + 90 ° = 360 ° k\degree+90\degree=360\degree k ° + 90° = 360° k = 360 − 90 = 270 k=360-90=270 k = 360 − 90 = 270
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