Han Muyuan Alex's answer to elly's Secondary 4 E Maths Singapore question.
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Angle at centre of cirle is ALWAYS dounle that of the angle at the circumference:
As such,
Angle at centre of circle: 360° - 270° = 90°
Angle at circumference: 90° ÷ 2 = 45°
As such,
Angle at centre of circle: 360° - 270° = 90°
Angle at circumference: 90° ÷ 2 = 45°
Date Posted:
1 year ago
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