Math, asked by AnanyaBaalveer, 6 hours ago

82. The circumference of a circle is 3.14 m, its area will be equal to:

a. \:  \: 4\pi

b. \:  \:  \frac{\pi}{4}

c. \:  \:  \: 314\pi

d. \:  \:  \: none


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Answers

Answered by pratharshan8
1

Answer:

 \frac{\pi}{4} {m}^{2}  \\ . The correct option is b option.

Step-by-step explanation:

Circumference  = 3.14 \\ 3.14 = 2 \times 3.14 \times r \\ r =  \frac{3.14}{2 \times 3.14}  \\  =  \frac{1}{2}m \\ Area \: of \: circle = \pi \times ( \frac{1}{2}  {)}^{2}  \\  =  \frac{\pi}{4} {m}^{2}

Answered by riz1cr7
1

Answer:

Area =

Step-by-step explanation:

2\pi \: r  = 3.14 \\ 2 \times  3.14 \times r = 3.14 \\ r =  \frac{3.14}{3.14 \times 2}  \\ r =  \frac{1}{2}  \\

area \:  = \pi \:  {r}^{2}  \\  \ 3.14 \times  \frac{1}{2}  \times  \frac{1}{2}  \\  \frac{314}{100}  \times  \frac{1}{4}  \\  \frac{314}{400}

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