How many diagonals in an isosceles triangle?

Answer 1

An isosceles triangle has three sides of equal length. To find the number of diagonals in an isosceles triangle, we can use the formula n(n-3)/2, where n is the number of sides of the polygon. In this case, an isosceles triangle has 3 sides, so plugging in n=3, we get 3(3-3)/2 = 0 diagonals. Therefore, an isosceles triangle has 0 diagonals.

Answer 2

An isosceles triangle must have at least two equal sides, and two equal angles. The sum of all three angles is 180 degrees.

Answer 3

None but 2 of its 3 sides are equal in length and it has one line of symmetry

Answer 4

2

Answer 5

180

Answer 6

One