If you're seeing this message, it means we're having trouble loading external resources on our website.

Hvis du er bak et webfilter, vær vennlig å sørge for at domenene .kastatic.org og .kastatic.org ikke er blokkert.

Hovedinnhold

STANDARDS

Math

Common Core Math

Grade 4: Geometry

4.G.A

Draw and identify lines and angles, and classify shapes by properties of their lines and angles.

4.G.A.1

Mostly covered
Draw points, lines, line segments, rays, angles (right, acute, obtuse), and perpendicular and parallel lines. Identify these in two-dimensional figures.

4.G.A.2

Fully covered
Classify two-dimensional figures based on the presence or absence of parallel or perpendicular lines, or the presence or absence of angles of a specified size. Recognize right triangles as a category, and identify right triangles.

4.G.A.3

Fully covered
Recognize a line of symmetry for a two-dimensional figure as a line across the figure such that the figure can be folded along the line into matching parts. Identify line-symmetric figures and draw lines of symmetry.