Match each circumference to the corresponding radius or diameter of the circle. (All circumferences are approximate.) Tiles circ

Question

4 years ago

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Match each circumference to the corresponding radius or diameter of the circle. (All circumferences are approximate.) Tiles circ

umference: 34.54 units circumference: 59.66 units circumference: 23.236 units circumference: 26.376 units circumference: 13.188 units circumference: 29.83 units Pairs radius: 4.2 units diameter: 7.4 units diameter: 11 units radius: 9.5 units

Mathematics

1 answer:

Pavlova-9 [17] · Answer 1 · 2021-12-08T08:45:56+03:00

We solve for the diameters of radius of the given circles by using the equation,
C = πD
or C = 2πr
where D and r are diameter and radius, respectively.

Solving,
C = 34.54 units
D = C/π = 34.54 units / 3.14 = 11 units
r = C / 2π = 34.54 units/2(3.14) = 5.5 units

C = 59.66 units
D = C/π = 59.66 units/3.14 = 19 units
r = D2 = 9.5 units
C = 23.236 units
D = 23.236 units/3.14 = 7.4 units
r = D/2 = 3.7 units
C = 23.376 units
D = 23.376 units / 3.14 = 7.4 units
r = D/2 = 3.7 units
C = 13.188 units
D = 13.188 units/3.14 = 4.2 units
r = D/2 = 2.1 units