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

웹 필터가 올바르게 작동하지 않으면 도메인 *. kastatic.org*.kasandbox.org이 차단되어 있는지 확인하세요.

주요 내용

Common Core Math

Grade 4: Geometry

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.