Question

1.Measure the diameter of each circle (i did it but dont know how to get the diamter to use divide by 2 or use the answer that i got for circumference)2. use the ruler to measure the circle (i did it)3. fill in the chart (not yet)4 calculate the ratio circumference to diamter and record in the chart below.Diameter, circumference, and ratio (circumference ÷ diamter ) last part

Answer 1

S/N | Diameter | Circumference | Ratio

1 | 3 mm | 9.42 mm | π

2 | 4.5 mm | 14.13 mm | π

3 | 4 mm | 12.56 mm | π

4 | 4.7 mm | 14.76 mm | π

5 | 5.8 mm | 18.21 mm | π

Step-by-step explanation

To do this, we need to note that the circumference and the diameter of a circle are related through

Circumference = πD

π = pi = 3.14

D = Diameter

So, we can calculate the circumference for each of the diameter measured

D = 3 mm

Circumference = πD = π(3) = 3π = 9.42 mm

Ratio = (Circumference/Diameter) = (πD/D) = π = 3.14 (The ratio is equal to π regardless of the value of the diameter)

D = 4.5 mm

Circumference = πD = π(4.5) = 4.5π = 14.13 mm

Ratio = (Circumference/Diameter) = (πD/D) = π = 3.14

D = 4 mm

Circumference = πD = π(4) = 4π = 12.56 mm

Ratio = (Circumference/Diameter) = (πD/D) = π = 3.14

D = 4.7 mm

Circumference = πD = π(4.7) = 4.7π = 14.758 mm

Ratio = (Circumference/Diameter) = (πD/D) = π = 3.14

D = 5.8 mm

Circumference = πD = π(5.8) = 5.8π = 18.212 mm

Ratio = (Circumference/Diameter) = (πD/D) = π = 3.14

Hope this Helps!!!