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7 April, 13:14

Making a turn, a jetliner flies 2.3 km on a circular path of radius 3.6 km through what angle does it turn?

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  1. 7 April, 13:32
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    37 degrees First, let's figure out the circumference of a circle that has a radius of 3.6 km. So 3.6 km * 2 * pi = 7.2 km * pi ~ 22.61946711 km So the circumference is approximately 22.61946711 km. Now let's determine how much of that circumference the jet traveled. 2.3 km / 22.61946711 km = 0.101682325 Finally, since a full circle is 360 degrees, let's multiply by that to get the angle. 0.101682325 * 360 = 36.60563691 So after rounding to 2 significant figures, the jet turned through an angle of 37 degrees.
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