A² + b² = c² is the Pythagorean theorem.
Answer:
D
Step-by-step explanation:
Given
C = 2πr ( isolate r by dividing both sides by 2π )
= r → D
Gyufy5strulutsrts
7+2x4=
9x4=
36
Answer:
system of equations:

Step-by-step explanation:
I've attached an image with an explanation below, hope it helps!