Question

if the area of a circle is 154 sq cm . find the radius and circumference ​

Answer 1

area of a circle=πr^2

154=22/7×r^2

r=7cm

circumference=2πr=2×22/7×7=44cm

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Answer 2

Answer:

Radius=7cm

Circumference=44cm

Step-by-step explanation:

Area of the circle = 154 sq.cm.

πr^2=154

r^2= 154/π= 154/3.14=49

r=√49=7cm

Circumference of the circle=2πr= 2×3.14×7=44cm.

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