Question

Use x= 3.14 to find out the diameter of a circle whose area is 7850m

Answer 1

Answer:

100

Step-by-step explanation:

area=pie×r×r

area=7850

7850=3.14×r×r

7850/3.14=r×r

2500=r×r

2500½=r

50=r

diameter=2r=50×2=100

Answer 2

Answer:

verify the question it may be π= 3.14

Step-by-step explanation:

are of circle = π r² sq unit

=> π r² = 7850m

=>3.14 * r² = 7850m

=> r² = 7850m÷ 3.14 =2500

=>r = √2500m= 50

therefore diameter = 2*50 =100m