27. that is, if the triangles are not connected.
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A pentagon has 3 triangles and 5 sides
A triangle has three sides, so six triangles have 6 * 3 = 18 sides altogether.
seven There are five triangles in a heptagon. In ay convex polygon the triangles are two less than the sides. So a heptagon which has 7 sides, contains 5 triangles. There are five triangles in a heptagon. In ay convex polygon the triangles are two less than the sides. So a heptagon which has 7 sides, contains 5 triangles.
4 triangles
isosceles triangles have 2 congruent sides scalene triangles have no congruent sides equilateral triangles have 3 congruent sides