Question

Find the circumference of the circle with the diameter 3.8 cm​

Answer 1

Answer:

Hey mate here is ur answer

Step-by-step explanation:

Circumference of circle is

$2\pi \: r$

Diameter is 3.8

Radius = D/2

R= 1.9

Circumference of circle= 2 ×22/7×1.9

= 11.94 cm

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Answer 2

Answer:

Circumference of Circle = 11.932 cm

Area of Circle = 11.3354 cm²

Step-by-step explanation:

We Have :-

Circle with the diameter 3.8 cm​

To Find :-

Circumference of the circle

Formula Used :-

$Circumference\ of\ Circle = 2 \pi r\\\\\\Area\ of\ Circle = \pi r^{2}$

Solution :-

$Radius\ of\ Circle = \dfrac{Diameter}{2} \\\\\\Radius = \dfrac{3.8}{2} \\\\\\Radius = 1.9 cm$

Circumference = 2 * 3.14 * 1.9

                         = 11.932 cm

Circumference of Circle = 11.932 cm

Area = 3.14 * 1.9 * 1.9

                       = 11.3354 cm²

Area of Circle = 11.3354 cm²

Circumference of Circle = 11.932 cm

Area of Circle = 11.3354 cm²