The circumference of a circle is 31.4 cm. Find the radius and the area of the circle.
(Take π = 3.14)
Answers
Answered by
14
Answer:
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Step-by-step explanation:
Here,
Circumference=31.4cm
=>2πr=31.4
=>2*3.14*r=31.4
=>r=31.4/3.14*2
=5cm.
Therefore,
Area of the circle=πr²
=3.14*5²
=78.5cm².
Answered by
8
Answer:
Circumference of the circle = 31.4 cm
2πr = 31.4
∴ r= 31.4 / 2×3.14 = 5 cm
Area of the circle = 7πr square
= 3.14 × 5 × 5 = 78.5 cm square
Hence, the required radius
= 5 cm and area
= 78.5 cm square
Step-by-step explanation:
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