How to draw a circle with svg

<svg>
	<circle cx="70" cy="70" r="70" fill="#383838" stroke="none"/>
</svg>

That's one circle, how about two?

<div style='padding:30px;background-color:#111;'>
	<svg width="406" height="406" xmlns="http://www.w3.org/2000/svg" style='background-color:#111'>
		<g transform="scale(1 1)">
			<circle cx="203" cy="203" r="203" fill="#383838" stroke="none"/>
		</g>
	</svg>
</div>

<div style='padding:30px;background-color:#111;'>
	<svg width="406" height="406" xmlns="http://www.w3.org/2000/svg" style='background-color:#111'>
		<g transform="scale(1 1)">
			<circle cx="203" cy="203" r="203" fill="#383838" stroke="none"/>
		</g>
	</svg>
</div>