1.

Circumference of a circle with diameter 1 meter is(a) 3.14 cm (b) 31.4 cm (c) 314 cm (d) 3140 cm​

Answer»

OPTION ( C ) 314 CM is the correct ANSWER

Step-by-step explanation:

We Have :-

Circle -

Diameter = 1 m

To Find :-

Circumference of the circle

Formula Used :-

circumference \: of \: circle = 2 \: \pi \: r

SOLUTION :-

circumference \: of \: circle = 2 \: \pi \: r \\ \\ diameter = 1 \: m \\ \\ radius = \dfrac{diameter}{2} \\ \\ radius = \dfrac{1}{2} \: m \\ \\ inserting \: values \: in \: the \: formula \\ \\ circumference \: of \: circle = 2 \times 3.14 \times \dfrac{1}{2} \\ \\ circumference \: of \: circle = 3.14 \: m \\ \\ converting \: 3.14 \: m \: into \: cm \\ \\ 3.14 \: m = 3.14 \times 100 \: cm \\ \\ 3.14 \: m = 314 \: cm

Option ( C ) 314 cm is the correct answer


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