Answer:
A. Adjacent
Step-by-step explanation:
Answer:
The diameter is 16.8
Step-by-step explanation:
The diameter is double the radius.
Answer:
7.1
Step-by-step explanation:
um i think yolo
Answer: 10
<u>Step-by-step explanation:</u>
varies directly means: 
Step 1: solve for k ⇒ 
Step 2: plug in the given value and k to solve for the missing value: 
42(5) = 21(x)

2(5) = x
10 = x
Circumference/Diameter = pi = 3.14
C/D = pi = 3.14