Step-by-step explanation: Given:– A circle whose diameter is 6.6 cm. To find:– Find the circumference of a circle whose diameter is 6.6 cm. Solution:– Method-1:– Diameter of a circle (d)=6.6 cm Radius of the circle (r) = Diameter/2 =>r = 6.6/2 =>r = 3.3 cm Radius of the circle = 3.3 cm We know that Circumference of a circle whose radius is ‘r’ units =>C = 2πr units =>C = 2×(22/7)×3.3 cm =>C = (2×22×3.3)/7 cm =>C = 145.2/7 cm =>C = 20.74 cm ( approximately) Method–2:– Diameter of a circle (d)=6.6 cm We know that The Circumference of a circle whose diameter is ‘d’ units = C = πd units =>C = (22/7)×6.6 cm =>C = (22×6.6)/7 cm =>C = 145.2/7 cm =>C = 20.74 cm (approximately) Answer:–. The Circumference of the given Circle is 20.74 cm Used formulae:– Circumference of a circle whose radius is ‘r’ units C = 2πr units The Circumference of a circle whose diameter is ‘d’ units = C = πd units π=22/7 Reply
Answer:
20.73cm
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Step-by-step explanation:
Given:–
A circle whose diameter is 6.6 cm.
To find:–
Find the circumference of a circle whose
diameter is 6.6 cm.
Solution:–
Method-1:–
Diameter of a circle (d)=6.6 cm
Radius of the circle (r) = Diameter/2
=>r = 6.6/2
=>r = 3.3 cm
Radius of the circle = 3.3 cm
We know that
Circumference of a circle whose radius is ‘r’ units
=>C = 2πr units
=>C = 2×(22/7)×3.3 cm
=>C = (2×22×3.3)/7 cm
=>C = 145.2/7 cm
=>C = 20.74 cm ( approximately)
Method–2:–
Diameter of a circle (d)=6.6 cm
We know that
The Circumference of a circle whose diameter is ‘d’ units = C = πd units
=>C = (22/7)×6.6 cm
=>C = (22×6.6)/7 cm
=>C = 145.2/7 cm
=>C = 20.74 cm (approximately)
Answer:–.
The Circumference of the given Circle is 20.74 cm
Used formulae:–