Describe a rule you see in the shape pattern below.
becfdhgl

The rule in this shape is a back and forth pattern that is repeating itself between the letters with curves and letters with straight lines.

Step-by-step explanation:

If we look closely and break down the given shape as below:

BE, CF, DH, GL

the answer is b: 18

step-by-step explanation:

use the pythagorean theorem to .

a^2+b^2=c^2

plug 18 for "r"

the 2 legs are 18 and 24

18^2+24^2=c^2

324+576=c^2

900=c^2

c=30

30-12=18

18 is the radius

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-9

step-by-step explanation: