Answer: You gotta do your own homework sometimes :(
Step-by-step explanation: Ask the questions separately
maybe you will get better answers.
I don't really know how to explain, but I will give you the straight up answer
5 HARDCOVER BOOKS (would total up to $20)
3 paperback books (would total up to $6)
Answer:
<u>417.4ft^2</u>
Step-by-step explanation:
Surface area of a cone = πr(r+√r²+h²)
r is the radius
h is the height
Substitute
Surface area of a cone = π(5)(5+√5²+21²)
Surface area of a cone = πr(5+√25+441)
Surface area of a cone = π(5)(5+21.59)
Surface area of a cone = 3.14*5*26.59
Surface area of a cone <u>= 417.4ft^2</u>
<u>Hence the surface area of the cone is 417.4ft^2</u>
I am so sorry if this is wrong:(
1. Matt is Edwards.
2. Joe is white.
3. Ben is waters.