Find the radius of one ball. The number of balls is 40 and their row is 80 centimeters long.

univerkov | December 21, 2020 | education

Since the balls are in the same row, then their diameters form a segment equal to 80 cm.
Let’s find the diameter of one ball: 80: 40 = 2 cm.
Now D = 2R. Therefore, R = D / 2 = 2 cm / 2 = 1 cm
Answer: the radius of one ball is 1 cm.

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