Suzanne wants to put a fence around her square garden. If the garden covers an area of 100 ft, how many feet of fencing does she need?

20 ft***
40 ft
10 ft
400 ft

Which number is an irrational number?

0.12
0.1257486
0.1212121212........ (my answer is this one that i am typing on lol)
0.11111111111........

Which number is a perfect square?
32***
144
1,000
36,000
I dont understand this question, what does it mean by "perfect square' square root maybe ??

Sam purchased 625 square feet of carpet for his bedroom, which is shaped as a square. What are the dimensions of his bedroom?
Each side of the bedroom has a length of 25 feet.
Each side of the bedroom has a length of 156.25 feet.
Each side of the bedroom has a length of 390,625 feet.
Each side of the bedroom has a length of 312.5 feet
I think it is either 25 feet or 156.25 feet.

Estimate the value of square root of 50

between 5 and 6
between 6 and 7
between 7 and 8****
between 8 and 9

Thank you for taking the time to go through my answers , if you could help i would be grateful

4 answers

Could i get some help please ?
1. A = 100Ft^2.
L = sqrt(100)= 10Ft. = Length of each side.
10Ft/side * 4sides = 40 Ft.

3. A perfect square is a number whose square root is a whole number:
9, 25, 144 and 36 are perfect squares, because their square root is a whole number.

4. sqrt(625) = 25 Ft./side.

5. Correct.
Thank you henry for the first questioned you answered helped me understand more, and it is correct the #1 answer that henry did.
Im pretty sure all his answered are correct but don't count on me, count on your knowledge.