Answer:
1. Diameter: 1.2 cm
2. Area: 0.2 mm
Step-by-step explanation:
The formula for the circumference is 2πr so the diameter is 3.8 cm divided by π. That equals 1.2 cm.
To find the area, we need the radius which we can get by dividing 1.6 mm by π then dividing that by 2. That is 0.51 divided by 2. That equals 0.255 mm. The formula for the area is π(r squared). That is 0.065 times π which is 0.2 mm. I hope this helped and please mark me brainliest!
