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Math Puzzle for March 13, 2026

Predictions about the past are amazingly accurate, but regarding the future they’re iffy

Alameda Post - A math diagram. [1]

A quadrilateral is inscribed in a circle; all four vertices contact the circumference. The measure of angle θ = 110.6106942°.

Side a = 2(x + 4), side b = 4x − 1, side c = 4(x + 1) and side d = 3(x + 1).

Find the area of the quadrilateral. It will not be a whole number answer.

Kudos to last week’s [2] winner Ben Chacon, who calculated Volume = 90011 cc.

(Use of AI is strictly forbidden.)

Jeff Smith is a former Math teacher and a retired US Navy Lieutenant Commander. Reach him at [email protected] [3].