The radius of a circle is 28 cm and the area of the sector is filled with rain water is 205.4 cm^2. Find the central angle.
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Answer:
Step-by-step explanation:
given:
radius=28cm
area of the sector = 205.4 cm
To find:
theta or cetre angle
solution:
area of sector :
205.4= theta/360×22/7×28×28
205.4= theta/ 360×22×4×28
theta=(205.4×360)/22×4×28= 30( approx)
therefor ,theta =30 degree
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