Question

ek vrat ki trija 10.5cm hai to vrat ki paridhi vrat ka shetrafal gyat kro
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Answer 1

Answer:

वृत्त की परिधि /== 2πr

= 2* π*10.5

=21π cm

वृत्त की छेत्रफल /== πr²

= π *(10.5)²

= 110.5π cm²

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