Answer:
1. 43.01 mm²
2. 13.82yd
3. 15.71cm
4.18.85m
5. 13.85m²
6. 8.17mm²
Step-by-step explanation:
/ means divided by
* means multiplied by
radius is half of a diameter
circumference of a circle is pi multiplied by diameter
area of a circle is pi multiplied by radius squared
1. radius is 7.4 divided by 2 which is 3.7
radius of 3.7 squared is 13.69
pi multiplied by 13.69 is 43.01
2. diameter is radius times 2
2.2 times 2 is 4.4
ℼ * 4.4 = 13.82
3. pi*5=15.71
4. pi*6=18.85
5. 2.1*2.1 = 4.41 -> pi*4.41 = 13.85
6. 1.3*2= 2.6 -> pi*2.6=8.17
