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Математика 1-4 класи

Пряма це геометрична фігура, яка не має ні початку, ні кінця.
Промінь це пряма лінія, яка має початок, але не має кінця.
Ламана лінія це лінія, що складається з кількох відрізків, послідовно поєднаних крайніми точками.
Відрізок має початок і кінець, його не можна продовжити.
Точка найпростіша геометрична фігура, щоб зобразити точку, достатньо лише доторкнутись олівцем до паперу.
Кут це геометрична фігура, утворена двома променями, що виходять з однієї точки.
Ланки це відрізки у ламаній лінії.
Многокутник геометрична фігура, замкнена ламана.
Межа многокутника це замкнена ламана..
Гострий кут це кут менший за прямий. .
Created by: user-1811691
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