Question

What is the diameter of a circle whose area is 154

Answer 1

area of the circle=154

formula for finding area of the circle=πr² (where r=radius)

now,

   πr²=154

   22/7×r²=154

     r²=49

    r=√49=7

so diameter= 2r

                   =2×7

                   =14 ANSWER