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There are four types of triangles.

For an "equilateral triangle", all sides and angles have to be the same.

For an "isosceles triangle", 2 of 3 sides and angles have to be the same.

For a "scalene triangle", the "the same" rules don't apply.

For a "right-angled triangle", one corner has to be a right angle (90 degrees.)

For example in an equilateral triangle, as long as the sides are the same, they can add up to anything.

However, angles are different. In any given triangle, the angles must add up to 180 degrees.

Q: How much should all sides of a triangle equal up to?

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It depends on the type of triangle. A scalene triangle (no equal sides) has no rotational symmetry. An isosceles triangle (2 equal sides) has rotational symmetry order 2. An equilateral triangle (3 equal sides) has rotational symmetry order 3. The order of rotational symmetry is how many time a shape will fit over itself during one complete rotation.

A Square Or A Quadrilateral Or A Polygon With Four Straight Sides Has 360 Degrees!!=] I Know This Is Not The Question But It Is Related] A Triangle Has 180 Degrees!!=)

180* or 120*, not sure

The angles inside any triangle sum to 180 degrees. Isosceles simply means two sides are the same length.

none. A triangle, in standard 2 dimensions cannot have any parallel sides. Let's show without going into formal proof. Let's say that you try to make a triangle with 2 parallel sides. -------------side a------------- |C | | |side b | | |A -------------side c--------------- Side a & b intersect at vertex C. Side b & c intersect at vertex A, and since sides a & c are parallel, they will never intersect, so there is no third vertex, so it's not a polygon, much less a triangle.

Related questions

An equilateral triangle has 3 equal sides

A triangle always has three sides, thus the name tri-angle (3 angles)

yes because if is a equilateral triangle all the sides is equal but a quadrangle not so much

It depends on the type of triangle. A scalene triangle (no equal sides) has no rotational symmetry. An isosceles triangle (2 equal sides) has rotational symmetry order 2. An equilateral triangle (3 equal sides) has rotational symmetry order 3. The order of rotational symmetry is how many time a shape will fit over itself during one complete rotation.

180 degrees

A triangle woll always have three sides and three angles.

none

4 equal sides

There are three measurable angles within a triangle, and within a equilateral triangle there are thee equal angles, each measuring 60o .

It can measure anything as long as the sides are all of different length and no angles are equal and the triangle has no lines of symmetry. If u r a member plz leave a note on my message board. Smiley bubble xxx

because it has equal sides and you can fold it anyway and it will still have equal sides

The definition of an equilateral triangle is one whose sides all have the same length.The definition of a scalene triangle is one in which no two sides have the same length.Seems like their definitions pretty much rule out a case where the same triangle is both.