**Find the answer to the nearest tenth. The length of the base of a triangle is 3 times the length of its altitude. Find the length of the base if the area of the triangle is 54 m^2.**

**Answer:**

**Find the answer to the nearest tenth. The length of the base of a triangle is 3 times the length of its altitude. Find the length of the base if the area of the triangle is 54 m^2.**

**Answer:**