SOLUTION: Find the angle at the centre of the sector,
When the perimeter is 64 cm and radius is 21cm.
Algebra.Com
Question 1003581: Find the angle at the centre of the sector,
When the perimeter is 64 cm and radius is 21cm.
Answer by josgarithmetic(39632) (Show Source): You can put this solution on YOUR website!
The arc is some length .
radius, given as 21; full circumference is .
Perimeter of sector is given as 64;
, centimeter length units.
A full circle central angle measure would be .
The example central angle is a fraction of .
Central Angle Measure in radians, ,
RADIANS
As degrees,
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