Jawab:the circumference of the circle is approximately 4.4 cm

Penjelasan dengan langkah-langkah:

The formula to find the circumference of a circle is:

C = 2πr

where C is the circumference, π is a mathematical constant approximately equal to 3.14, and r is the radius of the circle.

In this case, the radius of the circle is given as 0.7 cm. Substituting this value into the formula, we get:

C = 2π(0.7)
C = 1.4π

To find the value of C in centimeters, we need to multiply by the value of π. Taking n = 22, we get:

C = 1.4π
C = 1.4(22/7) (substituting the value of π as 22/7 for n)
C = 4.4 cm

Therefore, the circumference of the circle is approximately 4.4 cm