what are the dimensions of home plate in major league baseball
Baseball field The dimensions of home plate are 17 inches (43 cm) across the front, 8.5 inches (22 cm) down each side, with a triangular rear of two sides of 12 inches (30 cm). The rear edges are at 45 degrees to the sides, making a point at the back.[1] The plate is white and surrounded by a black strip 3⁄4 inch (1.9 cm) in width. The plate sits entirely in "fair" territory, with the two rear edges aligned with the right and left field foul lines. The length and angle requirements for home plate mandate that it is not a regular pentagon; it is a 17 by 8.5 inches rectangle with an isosceles triangle of base 17 inches and equal sides of 12 inches attached to the back.
Baseball field In roughly the middle of the square, equidistant between first and third base, and a few feet closer to home plate than to second base, is a low artificial hill called the pitcher's mound. This is where the pitcher stands when throwing the pitch. Atop the mound is a white rubber slab, called the pitcher's plate or pitcher's rubber. It measures 6 inches (15 cm) front-to-back and 2 feet (61 cm) across, the front of which is exactly 60 feet 6 inches (18.44 m) from the rear point of home plate. This peculiar distance was set by the rule makers in 1893, not due to a clerical or surveying error as popular myth has it, but intentionally (further details under History).
Baseball field In roughly the middle of the square, equidistant between first and third base, and a few feet closer to home plate than to second base, is a low artificial hill called the pitcher's mound. This is where the pitcher stands when throwing the pitch. Atop the mound is a white rubber slab, called the pitcher's plate or pitcher's rubber. It measures 6 inches (15 cm) front-to-back and 2 feet (61 cm) across, the front of which is exactly 60 feet 6 inches (18.44 m) from the rear point of home plate. This peculiar distance was set by the rule makers in 1893, not due to a clerical or surveying error as popular myth has it, but intentionally (further details in History section).
Baseball field In Major League Baseball, a regulation mound is 18 feet (5.5 m) in diameter, with the center 59 feet (18 m) from the rear point of home plate, on the line between home plate and second base. The front edge of the pitcher's plate or rubber is 18 inches (46 cm) behind the center of the mound, making the front edge's midpoint 60 feet 6 inches (18.44 m) from the rear point of home plate. Six inches (15.2 cm) in front of the pitcher's rubber the mound begins to slope downward. The top of the rubber is to be no higher than ten inches (25.4 cm) above home plate. From 1903 through 1968, this height limit was set at 15 inches (38.1 cm), but was often slightly higher, sometimes as high as 20 inches (51 cm), especially for teams that emphasized pitching, such as the Los Angeles Dodgers, who were reputed to have the highest mound in the majors.