ek vritt ka vyas 7 centimetre hai uska kshetrafal gyat kijiye
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Answer:
38.5 cm^2
Step-by-step explanation:
Vyas=7
d=2r
d/2=r
7/2=r. ,r=3.5
vritt ka Kshetrafal = π r^2
= 22/7*(3.5)^2
=77/2
=38.5 centimetre^2
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