Q 1: The radius of a circle is 'y' cm, an arc AB subtends an angle of 60 ° at the centre O. Find 'y' if the length of the arc AB is given by 17.6 cm. 17.52 cm 15.62 cm 16.81 cm 18.63 cm

Q 2: The radius of a circle is 21cm, an arc AB subtends an angle at the centre O. Find the angle if length of the arc AB is given by 27.5 cm. 75° 65° 55° 70°

Q 3: The radius of a circle is 8.4 cm, an arc AB subtends an angle of 135° at the centre O. Find the length of the arc AB. 18.8 cm 29.8 cm 12.8 cm 19.8 cm

Q 4: The radius of a circle is 28 cm, an arc AB subtends an angle at the centre O. Find the angle if the length of the arc AB is given by 70.4 cm. 60° 123° 75° 144°

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