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This side is called the hypotenuse.

Q: What is the name for the side of a right triangle that is across the triangle from the right triangle?

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In a right triangle (a triangle where one of the angles is exactly 90 degrees) , the longest side is called the hypotenuse. In non-right triangles, the longest side has no special name.

hypotenuse - only if it is a right triangle. Otherwise, there is no special name.

The side opposite the right angle of a triangle is the hypotenuse which is the longest side

side across from 30: 1/2 the hypontenuse side across from 60: the length of the side across from 30, times the square root of 3 side across from 90: the hypotenuse

I am guessing you mean a right angled triangle. The hypotenuse is the longest side on a right angled triangle. So it is the side facing / parallel to the right angle.

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The longest side of a triangle, or the side across from the right angle.

The longest side in a right angled triangle is called a hypotenuse.

the side directly across from the right angle (the only slanted line)

The hypotenuse.

In a right triangle (a triangle where one of the angles is exactly 90 degrees) , the longest side is called the hypotenuse. In non-right triangles, the longest side has no special name.

Hypotenuse.

hypotenuse

hypotenuse - only if it is a right triangle. Otherwise, there is no special name.

That's the triangle's "hypotenuse".

If it has no right angles, it is not a right triangle and therefore you cannot name a hypotenuse of that triangle. Which implies you cannot find that side's measure.

If it has no right angles, it is not a right triangle and therefore you cannot name a hypotenuse of that triangle. Which implies you cannot find that side's measure.

Adjacent means next to. So you're asking what sides of a triangle are next to the right angle of a triangle. That would be the 2 shorter sides of the triangle or 'legs' of the triangle. The hypotenuse (which is the longest side of the triangle) is directly across from the right angle.