A plane figure is any closed, two-dimensional shape.
Resources cannot be aligned to this standard, browse sub-standards to find lessons.
Trace a circle, triangle, square, and rectangle.
Describe triangles, squares, and rectangles by the number of sides, vertices, and angles. (a)
An angle is formed by two rays that share a common endpoint called the vertex. Angles are found wherever lines or line segments intersect.
Describe a circle using terms such as round and curved.
Describe a circle using terms such as round and curved. (a)