Find the perimeter of a triangle with sides measuring \( 8 \mathrm{yd}, 17 \mathrm{yd} \), and 11 yd . The perimeter is _yd. The solution is

To find the perimeter of a triangle, simply add up the lengths of all its sides. Here, we have sides measuring \( 8 \mathrm{yd} \), \( 17 \mathrm{yd} \), and \( 11 \mathrm{yd} \). So the perimeter is: \[ 8 \mathrm{yd} + 17 \mathrm{yd} + 11 \mathrm{yd} = 36 \mathrm{yd} \] So, the perimeter is \( 36 \mathrm{yd} \). Did you know that the concept of perimeter dates back to ancient civilizations? The word "perimeter" comes from the Greek words "peri," meaning "around," and "meter," meaning "measure." Ancient Greeks were among the first to formally study geometry, and their work laid the foundation for mathematics as we know it today! If you ever find yourself needing to calculate the perimeter of irregular shapes, a common mistake is to forget to add all sides together. To avoid this, create a checklist: list each side's measurement, check off as you add them, and keep an eye on your math, because even the most seasoned mathematicians can slip up with simple addition!