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only right tringles or HL triangles have at least 1 right angle

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Q: Do all triangles have at least 1 right angle?
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Related questions

Do triangles have at least one right angle?

Triangles can be classified by their sides or their angles. When classifying them by their angles, triangles are called: acute triangles - all three angles are acute (less than 90º) right triangles - one right angle (90º) and two acute angles obtuse triangles - one obtuse angle (larger than 90º) and two acute angles


Do all triangles have two acute angles?

INCORRECT: No because there is a obtuse triangle and a right triangleCORRECT ANSWERYes all triangles have at least two acute angles. Obtuse triangles and right triangles also have at least two acute angles. They are called obtuse triangles and right triangles because by definition they are triangles with ONE obtuse angle and ONE right angle. So therefore they both have 2 acute angles. Also for an acute triangle, it would have 3 acute angles.


Does a triangle have 1 right angle?

Not all triangles have 1 right angle but they can have a maximum of 1 right angle.


What kind of triangles does the Pythagorean theorem work for?

All right angle triangles


Do all right triangles have acute angles?

All right angle triangles have a 90 degree angle and two acute angles that add up to 90 degrees


Do all shapes with a right angle have sides that are parallel?

No, right triangles do not.


What is the angle measures of a right angle?

A right angle is defined as 90 degrees, or pi/2 radians.


Does an isosceles triangle have a right angle in it?

An isosceles triangle may have a right angle, but a right angle is not a requirement of all isosceles triangles.


Do all acute triangles have only one acute angle?

No. All triangles MUST have at least two acute angles.


What do all right triangles have in common?

All right angle triangles have a 90 degree angle and two acute angles which all together the 3 angles add up to 180 degrees.


Can Pythagorean Theorem be used on all types of triangles?

No it can only be used with right angle triangles.


Are all 30-60-90 triangles isosceles?

No because 30-60-90 triangles are right angle triangles