Mathematics · Mensuration

Two circles touch each other externally. The sum of their areas is 89π cm2 and the distance between their centres is 13 cm. What is the positive difference between their radii?

Verified Solution4 OptionsUpdated: October 2026👁️1 View

13.5 cm
23 cm✓
32.5 cm
42 cm

Correct answer

3 cm

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Two circles touch each other externally. The sum of their areas is 89π cm2 and the distance between their centres is 13 cm. What is the positive difference between their radii?

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Two circles touch each other externally. The sum of their areas is 89π cm2 and the distance between their centres is 13 cm. What is the positive difference between their radii?

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