Step-by-step explanation:
Circumference (C):

Area (A):

Step-by-step explanation:
- 90-27=63°
- <2
- <2,<4
- 360°
X-27=-1
x represents unknown number
Step-by-step explanation:
Substitute the x values from the table into the equation.
<u>Substitute -4 into the equation:</u>
y = -3(-4) + 4
y = 12 + 4
y = 16
<u>Substitute -2 into the equation:</u>
y = -3(-2) + 4
y = 6 + 4
y = 10
<u>Substitute 0 into the equation:</u>
y = -3(0) + 4
y = 0 + 4
y = 4
<u>Substitute 2 into the equation:</u>
y = -3(2) + 4
y = -6 + 4
y = -2
y = 16, 10, 4, -2
Well if they look the same if u were to flip or turn it in wat ever position that they are in then if it still looks the same that's how u know that it's congruent