How can you be certain that the angles you have created form a square inside the circle?

can someone explain (thoroughly) why the black lines create a square?

it has the same slope and a different y-intercept

hope this : )

part a

x     y

0     8

1     7.5

2     7

3     6.5

4     6

5     5.5  

for every hour i deducted .5 inches from the length of the candle

part b

it is a function because for every x value there is only one y value

part   c

for every x value there is only one y value

x       y

0       8

1       7.6

2       7.2

3       6.8

step-by-step explanation:

ok then what happened.

it would rotate about 180 degrees.