Math Puzzle for March 28, 2025

Trapezius, trapeze, trapezium, trapunto, and the trapezoidal trap of travail

Three trapezoids each have a width of w.
The trapezoids extend horizontally from x = 12.
The trapezoids extend vertically, from the x-axis up to the line y = ⅓ x + 9
The ratio r of the A₂ area to the A₁ area is r = 1.375
Find the area of A₃ i.e. the third trapezoid.

A₃ = ______ square units

First correct answer to arrive at [email protected] wins a Tucker’s Ice Cream gift card.

Last week’s winner was Marissa Mihin with t = 360 seconds.

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