perpendicular
A perpendicular is a line that meets or crosses another line at a 90-degree angle. It is used in science and math to describe two lines that are perfectly square to each other.
例文
3 / 5The carpenter used a tool to make sure the wall was a perfect perpendicular to the floor.
The carpenter used a tool to ensure the wall was at a 90-degree angle to the floor.
In the diagram, please draw a perpendicular from point A to the base line.
In the drawing, please draw a line at a right angle from point A to the bottom line.
You need to hold the camera at a perpendicular to the ground for this shot.
You need to hold the camera straight up at a right angle to the ground.
語族
覚え方のコツ
Look at the capital letter 'T'. The vertical line is perpendicular to the horizontal line at the top.
クイックテスト
To create a perfect square, you must draw a line that is ______ to the base.
正解！
正解は： perpendicular
例文
The carpenter used a tool to make sure the wall was a perfect perpendicular to the floor.
everydayThe carpenter used a tool to ensure the wall was at a 90-degree angle to the floor.
In the diagram, please draw a perpendicular from point A to the base line.
formalIn the drawing, please draw a line at a right angle from point A to the bottom line.
You need to hold the camera at a perpendicular to the ground for this shot.
informalYou need to hold the camera straight up at a right angle to the ground.
The theorem requires us to calculate the length of the perpendicular dropped from the vertex.
academicThe math rule requires us to find the length of the 90-degree line coming down from the top corner.
Our architectural plan shows a perpendicular connecting the main hall to the east wing.
businessOur building plan shows a line at a right angle connecting the main hall and the east section.
語族
よく使う組み合わせ
よく使うフレーズ
at a perpendicular
positioned at a 90-degree angle
out of perpendicular
not straight or not at a right angle
the perpendicular
the vertical line in a geometric construction
よく混同される語
Parallel lines never touch, while perpendicular lines cross at exactly 90 degrees.
Vertical means straight up and down relative to the earth; perpendicular can be at any orientation as long as it is 90 degrees to another line.
使い方のコツ
While 'perpendicular' is often used as an adjective, as a noun it refers specifically to a line that is at a right angle to another. It is very common in geometry and construction contexts.
よくある間違い
Learners often use 'perpendicular' when they simply mean 'vertical' or 'straight'. Remember it always describes a relationship between two lines.
覚え方のコツ
Look at the capital letter 'T'. The vertical line is perpendicular to the horizontal line at the top.
語源
From the Latin 'perpendicularis', referring to a plumb line used by builders to find a vertical direction.
文法パターン
文化的な背景
The concept of the perpendicular is foundational to global architecture, ensuring that buildings stand stable and upright.
クイックテスト
To create a perfect square, you must draw a line that is ______ to the base.
正解！
正解は： perpendicular
関連語彙
scienceの関連語
logarithm
A1A logarithm is a mathematical value that represents the power to which a fixed number, called the base, must be raised to produce a given number. It is essentially the inverse operation of exponentiation, commonly used to simplify complex calculations in science and engineering.
trigonometry
A1Trigonometry is a branch of mathematics that studies the relationships between the lengths and angles of triangles. It is used to find unknown measurements in shapes and is essential in fields like physics and engineering.
fraction
A1A fraction is a small part or amount of something larger. In mathematics, it is a way to show a number that is not a whole number, such as 1/2 or 3/4.
integer
A1An integer is a whole number that does not have a fraction or a decimal part. It can be a positive number, a negative number, or zero.
microscope
A1A scientific tool used to see very small objects that are not visible to the naked eye. It uses special lenses to make tiny things like cells or bacteria look much larger.
oxygen
A1A gas with no color, taste, or smell that is necessary for all human and animal life. It makes up about 21 percent of the Earth's atmosphere and is essential for the process of breathing.
hydrogen
A1Hydrogen is a chemical element that is the lightest and most common gas in the universe. It has no color or smell and combines with oxygen to make water (H2O).
nitrogen
A1Nitrogen is a colorless and odorless gas that makes up most of the Earth's atmosphere. It is a chemical element that is essential for all living things to grow, especially plants.
polymer
A1A polymer is a large molecule made of many smaller units that are connected in a long chain. These materials can be natural, like rubber or wood, or synthetic, like plastic and nylon.
prime number
A1A prime number is a whole number greater than 1 that cannot be made by multiplying other whole numbers. It can only be divided evenly by itself and the number 1.
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