1. The problem describes an equilateral triangle with all sides equal. 2. Given two sides are 5 cm, but the base is labeled 9 cm, which contradicts the equilateral triangle property where all sides must be equal. 3. Assuming the marks mean all sides are equal, the correct length should be 5 cm for all sides, not 9 cm. 4. Therefore, each side of the triangle is 5 cm. Final answer: Each side of the triangle is 5 cm.