yes.. isosceles
In any right triangle, the two angles at either end of the hypotenuse are both always acute angles. But I don't think that would be called an 'acute' triangle, because an acute triangle is one in which all three angles are acute ones.
nope. if it did, the two other ends wouldn't be able to meet with obtuse angles. A triangle must have two or three acute angles. A triangle always has interior angles that sum to 180 degrees. If a triangle had only one acute angle, the sum of its angles would be more than 180 degrees, which is not possible.
Yes. Every triangle with an obtuse angle must have two acute angles.
A scalene triangle could have three acute angles, one right angle and two acute angles, or one obtuse angle and two acute angles.
No triangle is never acute in the sense that every triangle has at least two acute angles.
There are many possible shapes with two acute angles.
yes an obtuse triangle has two acute angles
In any right triangle, the two angles at either end of the hypotenuse are both always acute angles. But I don't think that would be called an 'acute' triangle, because an acute triangle is one in which all three angles are acute ones.
A right angled triangle can only have two acute angles.
A right triangle is a triangle with one of its angles being 90o. The requirements for the other two angles are that they both be acute and total to 90o. Therefore, the largest possible acute angle in a right triangle is 89.99999...o.
If there were less than two acute angles, there would be two (or more angles that were 90 degrees or more. Then the sum of the three angles of the triangle would be more than 180 degrees. But this is not possible because the interior angles of a triangle sum to 180 degrees.
Two. Two acute angles in a right triangle.
In a right angled triangle the two other angles are acute.
In a right angled triangle the two other angles are acute.
In plane geometry at least two angles must be acute in a triangle.
nope. if it did, the two other ends wouldn't be able to meet with obtuse angles. A triangle must have two or three acute angles. A triangle always has interior angles that sum to 180 degrees. If a triangle had only one acute angle, the sum of its angles would be more than 180 degrees, which is not possible.
Yes. Every triangle with an obtuse angle must have two acute angles.