altitude

標高、高度

場所や物が海面よりどれだけ高いかを表す距離。

やさしい英語で： The height of a place or object above the level of the sea.

• The plane gained altitude quickly.
• Less oxygen is available at high altitude.
• What is the altitude of this mountain village?

使い方： at an altitude of something (The village stands at an altitude of two thousand metres.)

類義語： elevation

よく使う表現： high altitude, at altitude, gain altitude

高度、高さ

地面や基準にした面から、物までの上向きの距離。

やさしい英語で： The distance of something above the ground or another chosen level.

• The balloon’s altitude above the ground increased slowly.
• Keep the drone at a low altitude.
• We measured the kite’s altitude above the field.

使い方： altitude above something (The drone maintained an altitude of ten metres above the ground.)

類義語： height

よく使う表現： low altitude, change altitude, altitude above ground

高さ

図形の頂点から、向かい側の辺や面へ垂直に測った距離。

やさしい英語で： The shortest distance from a corner of a shape to the opposite side or surface.

• The triangle’s altitude is four centimetres.
• Multiply the base by the altitude, then divide by two.
• We calculated the altitudes of three different pyramids.

使い方： the altitude of something (The altitude of the triangle is six centimetres.)

類義語： height

よく使う表現： triangle altitude, calculate the altitude, altitude of something