1st question ka answer plzz
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Answered by
1
Answer:
Circumference is = 39.6 cm
We know circumference = 2 × pi × r
A.T.P
2×22/7 × r = 396/10
r = (396×7)/(10×22×2)
r = 6.3 cm
Therefore ,
Area = pi × r^2
= 22/7×(6.3)^2
=127.74 sq.cm Ans
Answered by
1
Answer:
124.74 cm is the answer.
Step-by-step explanation:
First of all,
Circumference of circle=2πr.
The circumference of circle is 39.6cm.
39.6cm=2×22/7×r.
39.6=44/7×r.
r=39.6×7/44.
r=277.2/44.
radius=6.3cm.
Now, we have to find the area of circle.
Area of circle=πr^2.
Area of circle=22/7×(6.3)^2.
Area of circle=22/7×39•69.
Area of circle=873.18/7 cm.
Area of circle=124.74cm.
Hence, the Area of circle=124.74cm.
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