Question

Find the circumference of circle whose area is 7850 square

Answer 1

Answer:

314

Step-by-step explanation:

let the radius of circle be r

area = 7850 sq

⇒πr∧2 =7850

⇒ r∧2 = 7850/3.14 (taking value of π = 3.14)

⇒ r = 50

so, circumference of circle = 2 π r = 2x3.14x50  = 314