Answer:
3
Step-by-step explanation:
As the CD line is parallel to x-axis hence the separation or length is measured on the x-axis i.e.
the length of CD = length of C - length of D = 7 - 4 = 3
C=2*pi*r
2*3.141592654*2.5
Answer: 15.7 cm
Answer: 17
Step-by-step explanation: