Question

Area of circle is 38.5cmsquare .its circumference is

Answer 1

Answer:

22cm

Step-by-step explanation:

given Area of circle = 38.5 cm²

ie., (22/7)r² = 38.5 cm²

=> r² = 38.5 * (7/22) cm²

        = 3.5 (7/2) cm²

        = 3.5² cm²

=> r = 3.5 cm

Circumference of the circle = 2r*(22/7) units

                                              = 2(3.5)(22/7) cm

                                              = 7*(22/7) cm

                                              = 22cm