Name the type of graph in which central angle is involved.
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Step-by-step explanation:
In any sector, there are 3
parts to be considered:
the arc length,
the sector area
the sector angle
They all represent the SAME fraction of the whole circle.
The arc length is a fraction of the circumference
The sector area is a fraction of the whole area
The sector angle is a fraction of
360°
If the sector is
20% of the pie chart, then each of these parts is 20 %of the whole.
The sector angle is therefore:
20% × 360°
20/100×360=72°
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