Mathematics · Geometry

A quadrilateral ABCD is circumscribed about a circle such that its sides are tangent to the circle. If the lengths of the sides are AB = 9 cm, BC = 12 cm, and CD = 11 cm, what is the length of the fourth side, AD?

Verified Solution4 OptionsUpdated: October 2026👁️1 View

Correct answer

10 cm

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