Answer:
16
Step-by-step explanation:
3/4 = 12/x
Since 3 × 4 = 12
[Apply the same number with the numerator and denominator]
4 × 4 = 16
x = 16
8 cm
4+4=8 To get the diameter, double the radius and add them together.
R - 4 x 8 is the expanded expression
