The 3 interior angles of any triangle add up to 180 degrees.
9 diagonals
Two.Two.Two.Two.
There are no parallel lines in a triangle !
How many diagonal lines does a 1million sided shape have
zero
The 3 interior angles of any triangle add up to 180 degrees.
A heptagon has 4 diagonal lines and 7 sides and it has 2 congruent diagonal lines and 2 congruent triangles
There are four diagonal lines in a hexagon.
Not many. Depending on how you write, the letters L, O, Q, and X can have diagonal lines of symmetry.
Diagonal lines are used for many things like art and designs. They can be used for buildings.
4
it has 4 :)
14
14.
1 its from the "right angle point" on a diagonal to the center of the longest line.None normally but if it's an isosceles right angle triangle it will have 1 line of symmetry.
the answer would be 2