alleryA circular flower bed has area 49 pi sq m. Its diameter is
A21 m
B7 m
C14 m
D28 m
Answer & Solution
Correct answer: C. 14 m
1. Area = pi × r squared = 49 pi, so r squared = 49 and r = 7 m.
2. Diameter = 2 × r.
3. = 14 m.
_Source: syllabus Mathematics, Ch 11 "Areas Related to Circles", §11.2_
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