The answer is choice A.
In this problem, we are shrinking the poster by 1/4 of its size.
Which means you need to divide the sides by 4
For width:

For length:
Answer:
it is 40pi
Step-by-step explanation:
pi r^2 and you have 144 degrees shaded which is 40% of the circle.
You find the total volume to be 100pi and you divide by .4 (40%) to get 40pi as your answer
Asked and answered elsewhere.
brainly.com/question/1410592_____
Google doesn't recognize the terms "defects method" except in association with various postings of this same problem.
Use the website Symbolab. It's helped with all of my calculus problems.