Answer:
First answer.
Step-by-step explanation:
This is called the Arc length, here is the formula:
Arc length = (angle/360)*(2Pi*radius)
So,
(45/360)*(2*3.14*4)
= 3.14
SO Pi !!!!!
D 288cm
6x4x12 = 288cm
x = 1
you can tell by 7x=7
divide 7 on both sides and get 1
The answer is a and d
