<u>Answer:</u>
a = 8.1
<u>Step-by-step explanation:</u>
Use the cosine rule:

Substituting the values:

⇒ 
⇒ 
Step-by-step explanation:
597 rounding would be 600 while 52 would be 50.
So 600 x 50
= 30,000
7/2= radius (3.5)
V=πr2^<span>h
V=</span><span>π3.52*12
V= 461.81 </span>
Answer:1
Explanation:since the absolute value of -3 is 3 and 4-3=1