The diameter of a circle whose area is 30184 cm² is
Select one:
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a. 128 cm
b. 156 cm
c. 142 cm
d. 196 cm
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Answer:
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Answered by
0
Answer:
d.196
Step-by-step explanation:
since, area= πr^2
therefore, 30184=(22/7)×r^2. (π =22/7)
r^2= (30184×7)/22 = 1372×7= 196×49.
r=√(196×49) = 14×7=98cm
Diameter = 2*98= 196 cm
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