Sine of supplementary angles
sin(π – x) = sinx
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Question 1
.What is the value of sin120° ?
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Question 1 - Answer
sin120° = sin(180° - 60°) = sin60° = √3/2
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Question 2
What is the value of sin135° ?
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Question 2 - Answer
sin135° = sin(180° - 45°) = sin45° = 1/√2 or √2/2
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Question 3
What is the value of sin150° ?
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Question 3 - Answer
sin150° = sin(180° - 30°) = sin30° = 1/2
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