SEMICIRCLE - Định nghĩa trong Từ điển tiếng Anh
semicircle (noun)
/ˈsemisɜːrkl,ˈsemaɪsɜːrkl/
Giải nghĩa:
Half of a circle. Imagine a full circle that is cut exactly in the middle, forming two equal parts. Each part is called a semicircle.
Ví dụ:
He drew a semicircle on the whiteboard.
semicircle (noun)
/ˈsemisɜːrkl,ˈsemaɪsɜːrkl/
Giải nghĩa:
A two dimensional geometric shape that forms the space inside a semicircle line.
Ví dụ:
The area of a semicircle can be calculated using the formula (1/2)πr², where r is the radius.
Cách sử dụng
Semicircle is a word that describes half of a circle. Imagine if you drew a circle on a piece of paper, and then you cut it in half with a pair of scissors. The half that you have now is called a semicircle. You can use this word when you are talking about shapes or objects that are half-round, like a half-moon, or when you are solving geometry problems that involve circles. For example, if you need to calculate the area of a semicircle, you can use a formula that involves pi (π) and the radius of the circle.
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