Answer:
2pier is the formula for circumference
Step-by-step explanation:
A/3=7/10
21=10a
a=2.1
100a=100*2.1=210
Answer:
352 cm/s
Step-by-step explanation:
circ = 44pi
speed = distance * time
distance = circ * 4 = 176pi
speed = 176pi/0.5
Answer:
D)
Step-by-step explanation: