I want to make a circular sector using CSS. The sectors will form a complete circle. How can I make it using CSS?

I found a sample, but it makes a quarter circular sector. I want to make six circular sectors that make a complete circle. How can I make it?

Note: I am not good at drawing, but here's a sample of what I want...

circle devided in sectors 

div {
  width: 50px;
  height: 50px;
  background-color: #ccc;
  background-color: #ccc;
  -moz-border-radius: 100px;
  border-radius: 100px;
}
#center {
  position: relative;
  margin: 100px 0 0 100px;
  border: solid #fff 1px;
}
#tl,#tr,#bl,#br {
  position: absolute;
  height: 75px;
  width: 75px;
  z-index: -1;
}
#tl {
  border-radius: 100px 0 0 0;
  -moz-border-radius: 100px 0 0 0;
  top: -50px;
  left: -50px;
}
#tr {
  border-radius: 0 100px 0 0;
  -moz-border-radius: 0 100px 0 0;
  top: -50px;
  left: 26px;
}
#bl {
  border-radius: 0 0 0 100px;
  -moz-border-radius: 0 0 0 100px;
  top: 26px;
  left: -50px;
}
#br {
  border-radius: 0 0 100px 0;
  -moz-border-radius: 0 0 100px 0;
  top: 26px;
  left: 26px;
}
<div id="center">
  <div id="tl"></div>
  <div id="tr"></div>
  <div id="bl"></div>
  <div id="br"></div>
</div>

html css css-shapes
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