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If all three angles of a triangle measure less that 90 degrees (if all three angles are acute), the triangle is an acute triangle.

A triangle that has a right angle (an angle the measures exactly 90 degrees) is a right triangle. (The other 2 angles will be acute angles.)

A triangle that has an angle that is greater than 90 degrees (an obtuse angle), is an obtuse triangle. (The other 2 angles will be acute angles.)

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Q: How do you classify a triangle by its angles?

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It's important to remember that a triangle's angles will always total 180 degrees. 180 - 42 - 48 = 90. The last angle is 90 degrees, so this is a right triangle.

scalene triangle

A triangle with three congruent angles

No triangle has 2 obtuse angles

All angles equal = all sides equal = equilateral. Two angles equal = two sides equal = isosceles. All angles different = all sides different = scalene. An isosceles or scalene triangle may be right-angled or obtuse-angled if one of its angles is a right angle or obtuse angle (respectively).

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there is many ways to write when classifying a triangle, you can classify it by its sides or angles. When you classify it by angles you can classify it by acute, obtuse, and right triangle. when classyfing it by sides its isosceles, equilateral, and scalene!

You can classify a triangle by its sides or by its angles. I.e: A triangle with three equal sides is an equilateral triangle A triangle with three equal angles is an equiangular triangle A triangle with two equal sides is an isosceles triangle

An acute angled triangle has all its angles less than 90°.A right angled triangle has one of its angles equal to 90°.An obtuse angled triangle has one angle greater than 90°.A scalene triangle has all three sides of different lengths.An isosceles triangle has two sides and two angles equal.An equilateral triangle has all its sides and angles equal.

If you only know one angle, that angle is greater than 90 degrees, then the triangle is obtuse If that angles is equal to 90 degrees, then the triangle is a right triangle. If it is less than 90 degrees, you don't know enough information to classify the triangle.

It will be a right angled triangle with angles of 90, 72 and 18 degrees.

All triangles have 3 sides and 3 interior angles that add up to 180 degrees and they are classed as follows:- Right angle triangle:a 90 degree angle and 2 acute angles Scalene triangle: 3 acute angles Obtuse triangle: an obtuse angle and 2 acute angles Isosceles triangle: 2 equal base angles and an apex angle Equilateral triangle: 3 equal angles each measuring 60 degrees

You can classify a triangle by its sides, or by its angles.To classify a triangle by its sides:1- A triangle with three sides that are equal in length is called an equilateral triangle.2- A triangle with two sides of the same length and one different is called an isosceles triangle. 3- A triangle with no sides of equal length is called a scalene triangle. To classify a triangle by its angles: 1- A triangle with three angles that are greater than 0 and less than 90 degrees is called an acute triangle.2- A triangle with one angle that is 90 degrees exactly is called a right angle triangle.3- A triangle with one angle that is greater than 90 degrees is called an obtuse triangle.

It's important to remember that a triangle's angles will always total 180 degrees. 180 - 42 - 48 = 90. The last angle is 90 degrees, so this is a right triangle.

you classify triangles by seeing the sides as if the triangle was isosceles, equilateral, or scalene Isosceles= two angles equal or two sides equal Equilateral= all angles equal and all sides equal Scalene= all angles different and all sides different. ☻☻ I HOPE IT HELPED☻☻

If two angles in a triangle are congruent to two angles in another triangle, then the ______________ angles are also congruent.

There are 3 angles in a triangle

A triangle has 3 angles.

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