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Wire in the form of a rectangle of sides 6 cm and 4 cm is reshaped into a sector of a circle of radius 5 cm. Find the angle of the sector in radians

Answers (1)

The circumference of the reatangle=circumferance of the sector

that is 

\\20=2r+r\theta\\10=5\theta\\theta=2rad

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Safeer PP

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