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Q: Does a triangle has no right angles?

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No.

As there are 180 degrees in every triangle, and you have to have three angles, you can only have one right angle.

All three interior angles of a spherical triangle may be right angles.

No, a triangle can have up to one right angle, but it doesn't have to be a right angle in order to be a triangle. A right triangle had one right angle. so, NO

A right angle triangle has a right angle and two acute angles that all add up to 180 degrees.

Related questions

A triangle can never have three right angles

There are no obtuse angles in a right triangle. A right triangle consists of one right angle and two acute angles.

Yes. A right triangle is a triangle where one angle is a right angle. If two out of three angles are right angles, then it's an isosceles triangle. If all three angles are right angles, then it is an equilateral triangle.

An obtuse triangle can have no right angles, and has two equal angles.

square has 4 right angles and triangle has no right angles

A right triangle can have 2 equal angles if they are each 45° (any other right triangle will have no equal angles)

If a triangle is an isosceles triangle as well as being a right-angled triangle, the size of the two angles (that are not right angles) are 45 degrees.

0. A triangle can either have no right angles or it can have 1 (in which case it is a right angle triangle).

An equilateral triangle can't be a right triangle since an equilateral triangle has all 60° angles, which are NOT right angles [measuring 90°]. If a triangle is a right triangle, then it has a right angle!

a right triangle has one right angle and two acute angles

In a right angled triangle the two other angles are acute.

In a right angled triangle the two other angles are acute.

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