For a 12″ square the diagonal would be 16.97.

]]>Since the rules do specify that the edges be 17, 8.5, 8.5, 12 & 12, and that the 12″ sides form the base lines, and that the field is a square ( meaning that the resultant angle between the 12″ sides is by definition a right angle), that leaves the distance from the front of the plate to the point at 16.9706 inches. ]]>

Did you not even read it?

]]>whoops. sorry. the “45º” i mentioned, below, should have been “90º.” saw the mistake after entering, and i don’t see an ‘edit’ option.

]]>“according to the pythagorean theorem,” the square root of (8.5^2)*2 [or 72.25*2 or 144.5] is 12.02081528017131, so i’m guessing that they use the 17 inch front measurement as the standard, then take the two, 8.5 inch sides back at 45º angles, and finally bring the last two sides together at 135º angles, using a devil-be-hanged attitude on the ~.02081528017 inches difference in length.

just my 2¢.

An angle of 90 degrees is formed at their intersection.

The critical measurement is the original 17-inches as this determines whether the ball is in the strike zone.

]]>Yes, the original shape is a square, so the two corners closest to the pitching mound are right angles, but it has two sides removed. The removal of these sides leave an angle slightly larger than 90 degrees.

]]>again, it says square

]]>Actual definition:

1.05

Home base shall be marked by a five-sided slab of whitened rubber. It shall be a 17-inch square with two of the corners removed so that one edge is 17 inches long, two adjacent sides are 81/2 inches and the remaining two sides are 12 inches and set at an angle to make a point. It shall be set in the ground with the point at the intersection of the lines extending from home base to first base and to third base; with the 17-inch edge facing the pitchers plate, and the two 12-inch edges coinciding with the first and third base lines. The top edges of home base shall be beveled and the base shall be fixed in the ground level with the ground surface. (See drawing D in Diagram 2.)

it says square, and the definition of a square is four equal sides, meeting at four right angles . therefore, it must be at a right angle.

]]>According to Pythagorean theorem, the hypotenuse would have to be 16.9 inches rather than the 17 inches specified in the rulebook.

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