Circle's chords

The circle has two chord lengths, 30 and 34 cm. The shorter chord is twice as far from the center as the longer one. Determine the radius of the circle.

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You need to know the following knowledge to solve this word math problem:

algebra

rearrange variables

arithmetic

square root

planimetry

Pythagorean theorem
circle
chord

Units of physical quantities

time

Grade of the word problem

practice for 13 year olds
practice for 14 year olds
high school

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