Question

Two concentric circles have radii 8 cm and 22 cm. The difference between their circumferences is​

Answer 1

Step-by-step explanation:

Answer:

The perimeter of 1st circle is

redi= 8cm

circumfrance/perimeter=

2 \times 22 \div 7 \times 82×22÷7×8

=50.28(ans)

the perimeter of 2nd circle is

redi=22cm

circumfrance/perimeter=

2 \times 22 \div 7 \times 222×22÷7×22

=138.28cm(ans)

the difference is

138.28 - 50.28138.28−50.28

=88cm(ans)

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Answer 2

Answer:

88cm

Step-by-step explanation:

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