In the triangle below , y = ? cm. Round to the nearest tenth

(also how can i show you the triangle?)

it's best here to describe the figure (triangle ABC, say, with sides a,b,c) and give the parts you know, and name what you need to find out.

For your triangle, we have no idea which side is y, or anything else at all about the triangle.

To provide a precise answer, please describe the information given in the triangle. Include the lengths of any sides, angles, or other relevant measurements. Additionally, you can use text-based symbols to depict the triangle, such as using a combination of hyphens (-) and vertical lines (|) to represent sides, or by listing the lengths of the sides.