Calculate the circumference of a circle with diameter 10cm. - OCR - GCSE Maths - Question 13 - 2018 - Paper 1
Question 13
Calculate the circumference of a circle with diameter 10cm.
Worked Solution & Example Answer:Calculate the circumference of a circle with diameter 10cm. - OCR - GCSE Maths - Question 13 - 2018 - Paper 1
Use the formula for circumference
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The circumference of a circle can be calculated using the formula:
C = eta imes d
where:
- C is the circumference
- eta (pi) is approximately 3.14
- d is the diameter of the circle.
Calculate using the given diameter
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Given that the diameter d=10cm, substituting this value into the formula:
C=3.14×10=31.4cm
Thus, the circumference of the circle is 31.4 cm.
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