Question

The areas of two circular fields are in the ratio 16 : 99. If the radius of the
second circular field is 14 cm, then what is the radius of the first circular
field?​

Answer 1

Answer:

Step-by-step explanation:

Area of circle is π*r*r

Give radius of circle r2=14

C1/C2=16/99

(π*r1*r1)/(π*14*14)=16/99

By canceling π we get

(r1*r1)/(14*14)=16/99

r1*r1=(16/99)*196

r1*r1=31.6767676768

r1=5.62821176545 cm

Radius of first circle is 5.62821176545 cm

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Answer 2

Answer:

5.63(approx)

Step-by-step explanation:

radius of C2 is 14

let the radius of C1 be x

area of circul=πr²

so,

π×x×x/π×14×14=16/99

x²/196=16/99

x²=16/99×196

x²=31.67

x=√31.67

x=5.63(approx)

radius of C1 is 5.63(approx)