He would need to buy 4 packs of paper to print all of the material.
400 in² = (20 in)²
The area of a square is the square of the side length.
The length of one of the sides is 20 inches.
I think the answer is 1.06666666667
Answer:
B
Step-by-step explanation:
arc length = circumference × fraction of circle
= 84 ×
= 21 cm