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
It is a scalene triangle that has three different lengths and no angles are equal in size.
The 3 sides of an equilateral triangle are equal in length and its 3 interior angles are equal 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.
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 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 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 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°.