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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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If two of a triangle's angles measure 42 degrees and 48 degrees how would you classify that 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.
Classify the triangle by its angles and by its sides?
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).
How do you classify a triangle with no congruent sides?
scalene triangle
How do you classify a triangle?
A triangle is classified as a 3 sided polygon.
A triangle with three congruent angles?
A triangle with three congruent angles
