Final Answer:
The 166th decimal place of Pi is 3, thus the correct option is D.
Step-by-step explanation:
Pi, denoted by the Greek letter π, is one of the most important and fascinating numbers in mathematics. It is an irrational number, meaning that its decimal form never ends and never repeats. It is also an important constant in many mathematical equations, and is used to calculate the circumference and area of circles.
Every decimal place of Pi is an important part of the number, and the 166th decimal place is no exception. In order to determine the digit located at the 166th decimal place of Pi, we can use a number of methods. The simplest way is to use a calculator or computer program, which can quickly and accurately display the 166th decimal place.
Alternatively, we can use mathematical methods to find the 166th decimal place of Pi. To do so, we must first convert Pi to its decimal form. The decimal form of Pi is 3.1415926535897932384626433832795028841971693993751058209749445923078164062862089986280348253421170679.
Next, we must locate the 166th decimal place within this long string of numbers. To do this, we can count from the left, beginning with the first decimal place at 0. After counting 166 places, we arrive at the 166th decimal place, which is the number 3.
Therefore, the 166th decimal place of Pi is 3.