Annette is standing 50 m away from a Ferris wheel at a local fair. She always brings her clinometer to the fair with her and is able to measure the angle of elevation to the bottom and the top of the Ferris wheel. She finds that the angle of elevation to the top is 34 and the angle of elevation to the bottom is 11°. To the nearest metre, what is the radius of the Ferris wheel?

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