Question

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Answer 1

• Here, radius (r) = 22
• π is 3 as given.
• Therefore, we know, circumference of a circle = 2πr
• So, the circumference of this circle (C)
• = 2πr
• = 2 × 3 × 22
• = 6 × 22
• = 132

Answer:

The circumference of this circle is 132.

Hope you could get an idea from here.

Doubt clarification - use comment section.

Answer 2

Answer:

138.23

Step-by-step explanation:

C=2πr=2·π·22≈138.23008

then you round and get 138.23