2. A circular swimming pool has a radius
of 15 feet. The family that owns the pool
wants to put up a circular fence that is
5 feet away from the pool at all points.
Which is closest to the circumference
of the fence they will need?
A. 94.2 ft
B. 125.6 ft
C. 157 ft
D. 188.4 ft

answer: both chords and diameters have two endpoints on a circle. diameters must intersect the center of a circle.

i'm a sophomore in connections, i'd recommend checking on jishka.com they have a large range of questions and answers from our school.

step by step resolutions

1) n+n+1+n+2=51

3n+3=51

3n=48

n=16

the three numbers are 16, 17 and 18.

2) x+15=4x

3x=15

x=5

radha is now 5 years old

3) the two digits are x and y.

y=3x

(10x+y)+(10y+x)=88

y=3x

11x+11y=88

y=3x

x+y=8

x+3x=8

x=2

the original number can be either 28 or 82.

4) n+(n+2)+(n+4)=48

3n+6=48

3n=42

n=14

the numbers are 14, 16 and 18.

5) y=x+3

10y+x+10x+y=143

y=x+3

11x+11y=143

y=x+3

x+y=13

x+x+3=13

2x=10

x=5

the original number can be 57 or 75.

hope this !

the answer is d.x= 90°

y= 50°

arc lm= 100°

i got this one chief