Question

The numbers are measurements of radius diameter and circumference of circles A and B. Circle A is smaller than Circle B which number belongs to which quantity?

a. 2.5
b. 5
c. 7.6
d. 15.2
e. 15.7
f. 47.7

Answer 1

The correct assignments are:

a. 2.5 - radius of circle A

b. 5 - diameter of circle A

c. 7.6 - radius of circle B

d. 15.2 - dircumference of circle B

e. 15.7 - circumference of circle A

f. 47.7 - circumference of circle B

How to match the numbers

In the context of circles, the relationships between radius (r), diameter (d), and circumference (C) are:

Diameter is twice the radius: d = 2r

Circumference is given by C = π d

Analysis of the options

Given that circle A is smaller than circle B, we expect the measurements for circle A to be smaller. Considering this the most likely assignments are

a. 2.5 represents the radius (half of a diameter (5)) of circle A

b. 5 represents the diameter of circle A

c. 7.6 represents the radius (15.2) of circle B

d. 15.2 - represents the radius of circle B

e. 15.7: 15.7 / π = 4.99 approximately 5

f. 47.7 : 47.7 / π = 15.18 approximately 15.2