The Line Segment Perpendicular to the Major Axis, with Endpoints

question 31

Short Answer

The line segment perpendicular to the major axis, with endpoints on the ellipse, and passing through
the center of the ellipse is called the axis.

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Definitions:

Porphyritic Texture

A texture in igneous rocks characterized by larger crystals, known as phenocrysts, embedded in a finer-grained matrix.

Fine Grained

Describes rocks or minerals that have a small grain size, often requiring magnification to be seen clearly.

Small Crystals

Tiny, solid, naturally occurring inorganic substances with a definite chemical composition and a characteristic crystalline structure.

Igneous Rock

Rock formed through the cooling and solidification of magma or lava.