Introduction to 2D Geometry Concepts Quiz

An angle is the figure formed by two rays, called the sides of the angle, sharing a common endpoint, called the vertex of the angle.

Attributes refer to characteristics or properties associated with an object, entity, or concept. In the context of shapes, attributes describe specific features like the number of sides in a triangle.

Congruent figures are identical in both size and shape, meaning they have the exact same dimensions and angles. Any differences in size or shape would make the figures non-congruent.

An acute angle is any angle less than 90 degrees, making it smaller than a right angle (90 degrees). An angle that is greater than a right angle would be obtuse, not acute.

An equilateral triangle is a specific type of triangle where all three sides are of equal length, making it distinct from other types of triangles. It is important to understand the definition and characteristics of an equilateral triangle to differentiate it from other geometric shapes.

A hexagon is a polygon with 6 sides, making it distinct from polygons with fewer or more sides. In this case, options 2, 3, and 4 have an incorrect number of sides compared to a hexagon.

A circle is specifically defined as a plane figure with all points equidistant from the center.