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A LITTLE SOMETHING WORTH KNOWING

A small discovery. Yours to pass on.

Math & LogicOne small ahaShape

This three-sided polygon's interior angles total 180° in Euclidean geometry.

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Math & LogicOne small aha
Your new ahaTriangle

Triangle: Polygon with three sides and three angles. Source: Triangle ↗

ahamoraReference ↗

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More from Shapes & Space

A few more worth knowing.

  1. 02This plane curve consists of all points at a fixed positive distance from one centre.RECALL
    Circle

    A circle's edge stays perfectly equidistant from its center, with no straight sides or corners.

    Open this card ↗
  2. 03This shape, with four equal sides and right angles, counts as a special case of both rectangle and rhombus.RECALL
    Square

    A square, with four equal sides and right angles, counts as a special case of both rectangle and rhombus.

    Open this card ↗
  3. 04This general class of quadrilaterals has four right angles; a square is a special case.RECALL
    Rectangle

    A rectangle's four right angles come with opposite sides that are always equal in length.

    Open this card ↗