Answer: 91.92 yards
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Step-by-step explanation:
Draw a square that is tilted on one side (so it resembles a diamond shape). Each side of the square is 65.
Draw a vertical line through the top and bottom vertices of the square to connect home plate (bottom) to 2nd base (top). This forms 2 right triangles that are mirror clones of each other, aka they are congruent triangles.
Focus on one of those right triangles. The legs are a = 65 and b = 65. The hypotenuse is unknown which I'll call c.
Use the pythagorean theorem to find c.

The distance from home to 2nd is roughly 91.92 yards
Side note: 91.92 yards = 91.92*3 = 275.76 feet