PDF chapter test TRY NOW
For the sectors with given measures, find the length of the arc, area and perimeter. \(\pi = 3.14\)
(i) central angle \(45^{\circ}\), \(r = 16 \ cm\)
Answer:
Length of the arc \(=\) \(cm\) (approx.)
Area \(=\) \(cm^2\) (approx.)
Perimeter \(=\) \(cm\) (approx.)
(ii) central angle \(120^{\circ}\), \(d = 12.6 \ cm\)
Answer:
Length of the arc \(=\) \(cm\) (approx.)
Area \(=\) \(cm^2\) (approx.)
Perimeter \(=\) \(cm\) (approx.)
(Note: Round off the answers to \(2\) decimal places.)
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