Which of the following was not an achievement of the zhou dynasty?

Chopsticks have been around for a very long time. They're thought to have originated during the Shang dynasty, just prior to the Zhou dynasty.

Remember soh-cah-toasoh: cah: toa: now, looking at the picture we can see that we have an angle, the hypotenuse and want to find the value of the adjacent side to the angle. so we use cah to find the adjacent angle. plug in what we have: we need to solve for x now so we get it by itself on one side: plug this into your calculator and you'll find that: