class 8 math problem please solve it .
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0
Answer:
we know radius is half of diameter.
4.2×2=8.4cm
I hope it is correct
Answered by
1
Answer:
Perimeter of circle is 2 π r
= 2*22/7*4.2
=2*22/7*42/10
= 2*22*0.6
=44*0.6
=26.4
Step-by-step explanation:
Please mark me as brainliest
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