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What is the definition for an acute triangle?
An acute triangle is a triangle with all angles acute (for example, a triangle with angles 64 ,36, and 80). An acute angle is an angle less than 90 degrees. Also, all angles in a triangle MUST sum to 180 degrees.
What has 3 sides and 3 angles but only 2 are acute?
A right triangle because it has three sides and three angles. One of the angles though is an 90 degree angle making the other two acute angles because another 90 degree angle or an obtuse angle would not fit. An obtuse triangle also has 2 acute angles.
Are the exterior angles of a scalene triangle always obtuse?
No, they are not always obtuse, because a scalene triangle can also sometimes be an obtuse triangle (meaning that one interior angle is obtuse), making one exterior angle acute. Scalene triangles also can be a right triangles (meaning that one interior angle is a right angle), which would make an exterior angle a right angle. Then also they can be acute triangles, in this case all 3 exterior angles are obtuse.
Can a Right triangle also be acute?
No, because a right triangle has one angle which is 90 degrees, and the definition of an acute triangle says that each of the 3 angles of the triangles must be less than 90 degrees.
Does an acute angle have three equal sides?
An equilateral triangle which has three sides of equal length also has three equal angles. Each angle measures 60° and is therefore an acute angle as it is less than 90° .
If angle 3 is actue what is the other angles?
The question appears to relate to the angles of a triangle. 1) If angle 3 is acute then the other two angles can also be acute. In the case of an equilateral triangle all three angles are equal and acute. 2) If angle 3 is acute and one other angle is obtuse then the remaining angle is acute. 3) If angle 3 is acute and one other angle is a right angle then the remaining angle is acute.
Are two right triangles similar if an acute angle of one triangle is congruent to an acute angle of the other triangle?
Yes, you have two congruent angles in each triangle, one right and one acute so the third angles must be equal also.
What is the definition for an acute triangle?
An acute triangle is a triangle with all angles acute (for example, a triangle with angles 64 ,36, and 80). An acute angle is an angle less than 90 degrees. Also, all angles in a triangle MUST sum to 180 degrees.
Which triangle has two acute angles and one obtuse angle?
If you are classifying triangles by their angles, an obtuse triangle has one obtuse angle and two acute angles. A triangle can have at most one obtuse angle. If the two acute angles are congruent, the triangle would also be isosceles.
What is the hypotenuse angle theorem?
The hypotenuse angle theorem, also known as the HA theorem, states that 'if the hypotenuse and an acute angle of one right triangle are congruent to the hypotenuse and an acute angle of another right triangle, then the two triangles are congruent.'
What triangle has one obtuse angle and acute angle?
The triangle that has one obtuse angle and one acute angle is called a scalene triangle.I hope that helped!! : { )I also hope you like my mustache man. (above)
If two angles of a triangle are acute then the third must be?
Actually, you cannot conclude anything this way, at least not in regular geometry. For instance, in a "perfect triangle," all 3 angles are acute. In a right triangle, one is a right angle and the other two are acute. It is also possible to have an obtuse angle and two acute angles. The thing is, the 3 angles must add up to 180 degrees.
Which shape has only two acute angles?
"z" has two acute angles a triangle can have 3 acute angles but also will have a angle >= 60degrees acute (also note for every acute angle a obtuse angle is formed the sum of the obtuse and acute angle will = 360) because of this a arrow is the only shape with two acute angles and 1 obtuse
A triangle with one obtuse angle must also have two acute angles?
True
What is an angle called that is 60?
Acute. A 60-degree angle is also called a 'special triangle angle' since it appears in the special triangle 1, root(3), 2
What has 3 sides and 3 angles but only 2 are acute?
A right triangle because it has three sides and three angles. One of the angles though is an 90 degree angle making the other two acute angles because another 90 degree angle or an obtuse angle would not fit. An obtuse triangle also has 2 acute angles.
An obtuse triangle is scalene?
Yes, normally it is but it can also be an isosceles triangle if it has an obtuse angle and 2 equal acute angles.
