Answer:
30
Step-by-step explanation:
100%-40%=60%
but 50 is half of 100 you half 60% to 30 people
25 root 3 divided by 2
Base is 5. Height is 5 root 3
Multiply then divide by 2
The formula to find the area of a circle is A=πr2
Since we know the radius = 4 then we just plug it in the formula
A=π(4)2
= 50.27 in square