3.1415926535 is the ones I have memorized. Shouldnt need to know more then that
Answer:

Step-by-step explanation:
The given equation is A=4 πr².
We need to solve the above equation for r².
We have,
A=4πr²
Dividing both sides by 4π, we get :

Hence, the value of r² is equal to
.
Answer:
x=2
Step-by-step explanation:
46x-2=45x
+2 +2
46x=45x+2
-45x -45x
x=2
Answer:
b < 11 = The board is shorter than 11 cm
b > 11 = The box contain more than 11 blocks
b < 12 = There are fewer than 12 beetles in a jar
b > 12 = The building taller than 12 m
Hope this helped ;)