Answer:
36.53 cm²
Step-by-step explanation:
Picture this repeated four times to make a circle. The circle would have a radius of 8. 
r² would give us 201.06. One quarter of that would be 50.265.
The area of the square is length times width, or 8X8=64.
64-50.265=13.735. That would be ONE of the non shaded sections of the square. If you take that away twice, the leftover part would be the shaded area.
64-13.735-13.735=36.53 cm²
Answer:
A) (16L- 40) dollars
Step-by-step explanation:
Given in the question that the dimensions of the pool are;
Length= L yards
Width= L-5 yards
Finding the perimeter of the pool
P=2(l+w) where l is length and w is width
P=2(L+L-5)
P=2(2L-5)
P=4L-10
The cost for 1 yard square tile is $4
The border will cost ;
$4(4l-10)
$ (16 l-40)
Using the Pythagorean Theorem,
a² + b² = c²
c² = 8² + 8²
c² = 64 + 64
c² = 128
c = √128
c =8√2 (radical form) or 11.31 feet (nearest hundredth)
Answer: 11.31 feet
The answer to the question is d
