Find the circumference of each of the circles with the following diameters:
(a) 8 cm and (b) 27 mm
Answers
Answered by
6
circumference=
=πd
=3.14×8
=25.12 cm
2...27 mm
=3.14×27
=84.78 mm
=πd
=3.14×8
=25.12 cm
2...27 mm
=3.14×27
=84.78 mm
Answered by
3
(a) 8cm
radius= d/2 = 8/2 = 4 cm
circumference of circle = 2лr
=2*22/7*4
=176/7
=25.142cm
(b) 27 mm
radius = 27/2 mm
circumference= 2лr
=2*22/7*27/2
=22*27/7
=594/7
=84.857 mm
radius= d/2 = 8/2 = 4 cm
circumference of circle = 2лr
=2*22/7*4
=176/7
=25.142cm
(b) 27 mm
radius = 27/2 mm
circumference= 2лr
=2*22/7*27/2
=22*27/7
=594/7
=84.857 mm
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