An arc of a circle of radius 21 cm subtends an angle of $60^{\circ}$ at the centre. Find: (i) the length of the arc. (ii) the area of the minor segment of the circle made by the corresponding chord.
Explanation
The process of photosynthesis occurs in the chloroplasts of plant cells. It involves the conversion of carbon dioxide and water into glucose and oxygen using light energy from the sun. The overall equation for photosynthesis is 6CO2 + 6H2O + light energy → C6H12O6 (glucose) + 6O2.
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