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secondary 4 | A Maths
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secondary 4 chevron_right A Maths chevron_right Singapore

This is the only question im having troubles with. Thank you in advance!

Date Posted: 4 years ago
Views: 188
J
J
4 years ago
Draw line OR.

Realise that triangle POR is isosceles since PO = OR = radius of triangle.

So angle POR = 180° - 2θ

Use this to find segment PR's area.

(Area of Sector POR - area of triangle POR)

Subtract segment's area from semicircle to get your answer.
J
J
4 years ago
Or you could find triangle POR and sector ROQ and add them up together.

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lim
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4 years ago
Thank you so much!