They should all be 60 degrees.
If it is an equilateral triangle then it will have 3 equal angles If it is an isosceles triangle then it will have 2 equal angles plus another different size angle
An isosceles triangle because its base angles are equal in size
equaladiral triangle: all sides are equal in size scalene triangle: all sides are different in size isosceles triangle: two sides are the same length in size
Literally "equiangular"; but since a triangle with all angles equal must have all sides equal, it is also "equilateral" and it is the second adjective that is used.
The 3 sides of an equilateral triangle are equal in length and its 3 interior angles are equal in size
It is a scalene triangle that has three different lengths and no angles are equal in size.
There are 3 angles in an isosceles triangle and 2 of them are equal in size. The 3 interior angles add up to 180 degrees.
The 3 interior angles of an isosceles triangle add up to 180 degrees and 2 of the angles are equal in size
An equilateral triangle is one where all sides are of equal length and all internal angles are 60 degrees. An isosceles triangle is one where 2 adjacent angles are of equal size and 2 adjacent sides are of equal length. A scalar triangle is one where no sides are equal in length and no angles are equal in size. A right-angled triangle is one where one of the internal angles is 90 degrees. The internal angles of all triangles always add up to 180 degrees.
An isosceles triangle has 3 sides 2 of which are equal in length and 3 interior angles 2 of which are equal in size
An equilateral triangle has 3 equal sides and 3 equal interior angles each measuring 60 degrees
No - if the lengths of the sides are all increased by a factor of 3, the angles remain unchanged. You just wind up with a "similar" triangle 3 times the size of the original. A quick counterexample would be to consider what would happen if the angles DID change. The sum of the angles in the original triangle should be 180°. If the angles in the new, larger triangle tripled in size, the sum of the angles in the bigger triangle would be 540° - but the sum of the angles of a triangle should always remain 180°.