1.The radius of a circle is 30 cm. find the length of an arc of this circle, if the length of a chord of the arc is 30 cm.
2. A railway train is traveling on a circular curve of 1500 m radius at the rate of 66 km/hr. through what angle has it turned in 10 seconds?

Question

Bevkoof Singh · Answer

1-the length of arch is 31.4 cm ( by using formula 2&pi;r.&Theta;/360) 2-42 seconds or 0.7 0

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1.The radius of a circle is 30 cm. find the length of an arc of this circle, if the length of a chord of the arc is 30 cm. 2. A railway train is traveling on a circular curve of 1500 m radius at the rate of 66 km/hr. through what angle has it turned in 10 seconds?

1.The radius of a circle is 30 cm. find the length of an arc of this circle, if the length of a chord of the arc is 30 cm.
2. A railway train is traveling on a circular curve of 1500 m radius at the rate of 66 km/hr. through what angle has it turned in 10 seconds?

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1.The radius of a circle is 30 cm. find the length of an arc of this circle, if the length of a chord of the arc is 30 cm. 2. A railway train is traveling on a circular curve of 1500 m radius at the rate of 66 km/hr. through what angle has it turned in 10 seconds?

1.The radius of a circle is 30 cm. find the length of an arc of this circle, if the length of a chord of the arc is 30 cm. 2. A railway train is traveling on a circular curve of 1500 m radius at the rate of 66 km/hr. through what angle has it turned in 10 seconds?

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1.The radius of a circle is 30 cm. find the length of an arc of this circle, if the length of a chord of the arc is 30 cm.
2. A railway train is traveling on a circular curve of 1500 m radius at the rate of 66 km/hr. through what angle has it turned in 10 seconds?