Parabola Area Fractions

An Advanced Mathematics Lesson Starter Of The Day

In the first diagram, a triangle is inscribed in a parabola. Its apex is at the maximum point of the parabola, and its base has exactly the same endpoints as the parabola’s base. In the second diagram, the same parabola is placed inside a square, touching the top side at its maximum point and sharing its base with the bottom side of the square.

 

Two Parabolas

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    Erick Lee, BlueSky

    Saturday, June 20, 2026

    A couple of questions for the final day of my #calculus class. The hexagon question was from a post at the other place by Henk Reuling. I added the square version as a simplified option. #ITeachMath #MathsToday

    [image or embed]

    — Erick Lee (@theericklee.bsky.social) June 19, 2026 at 7:36 AM

    How did you use this resource? Can you suggest how teachers could present, adapt or develop it? Do you have any comments? It is always useful to receive feedback and helps make this free resource even more useful for Maths teachers anywhere in the world. Click here to enter your comments.



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