Amy use some coins to make an equilateral triangle with the side of 25 m. They were an equal number of coins on each side of the triangle. The distance between each coin is 5 m. There was one coin on every corner. how many coins where are used to make the equilateral.
There are a total of 15 coins used to make the equilateral triangle. Each side of the triangle has 5 coins, with one coin on each corner. So in total, there are 3 corners with 3 coins each, equaling 9 coins, and 3 sides with 2 coins each, equaling 6 coins. Therefore, 9 + 6 = 15 coins in total used to make the equilateral triangle.
