A circular gold bangle has an inside radius of 35mm. What is the circumference of the inside of the bangle? Use (22/7) as an approximation for phi

22/7 times 70 = 220cm

the circumfrence is 220cm

Formula of circumference is = 2 multiplied phi multiplied radius

Circumference the inside of bangle = 2 multiplied 22/7 multiplied 35 mm
Circumference the inside of bangle = 220 mm

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