Answer:
A = 4πcm, 6πcm²
B = 45°, 35πcm²
C = 12m, 18.7πm or 19πm
Explanation:
Formulas used...
Length of an arc of a sector = (¢/360)×2πr
Area of sector = (¢/360)×πr²
¢ means the angle given or used
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