DanniiDukes DanniiDukes 26-06-2018 Mathematics contestada A triangle-shaped machine part has sides of 2 1⁄2 inches, 3 1⁄4 inches, and 5 inches. The triangle's perimeter is A. 11 1⁄2 inches. B. 10 3⁄4 inches. C. 11 3⁄8 inches. D. 10 1⁄8 inches.