The height of a triangle is 7m less than it's base the area of the triangle is 30m^2 what is the length of the base what is the height of the triangle

If you know the base and area of the triangle, you can divide the base by 2, then divide that by the area to find the height. To find the height of an equilateral triangle, use the Pythagorean Theorem, a^2 + b^2 = c^2.