Question

a circle has a circumference of 56 cm find its diameter and its area

Answer 1

$<b><i><u> HEYA MATE ....‼$

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

Finding the value of radius 'r' :

$56 = 2 \times 22 \div 7 \times r \\ r = 8.9$
Then,
$d \: = r \times 2 \\ = 17.8$
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✴
$area \: of \: circle = \pi \: r {}^{2}$

Value of area of circle
$= 22 \div 7 \: \times( 8.9) {}^{2} \\ = 248.9$

Hope it helps ✔