As many as you want. The length of the third side can be anything between (25 + 18) and (25 - 18).
10 triangles
10 triangles make a decagon
Assuming you mean by combining 3 of the 4 given lengths. To make a triangle the sum of the two shorter sides must be greater than the third side; thus there are: Without repeats of length: 4 possible triangles. With repeats of length: The smallest length is 4cm with two of this length, the sum is 8cm which is greater than the longest length given (7cm), thus there are no impossible triangles with the given lengths. So there are 20 possible triangles.
depends on the side of the triangles?
There can be two equilateral triangles with a side length of 7 cm: one on either side of the given line.
isosolis equaladeral scalene
two
i dont know because its to give you that answer
10 triangles
There are 6 triangles in an octagon
10 triangles make a decagon
Assuming you mean by combining 3 of the 4 given lengths. To make a triangle the sum of the two shorter sides must be greater than the third side; thus there are: Without repeats of length: 4 possible triangles. With repeats of length: The smallest length is 4cm with two of this length, the sum is 8cm which is greater than the longest length given (7cm), thus there are no impossible triangles with the given lengths. So there are 20 possible triangles.
depends on the side of the triangles?
27 triangles make up an Icosihenagon
3 triangles make up a hexagon.
you can make 76 different triangles on a 3x3 grid
There can be two equilateral triangles with a side length of 7 cm: one on either side of the given line.