Question

The daimeter of a circle is 2.486 m.Calculate the area with due regard to significant figures

Answer 1

Answer:

GIVEN

diameter of the circle = 2.486 m

to find , the area of the circle we need to calculate the radius of the circle.

       radius of the circle = diameter of the circle / 2

                                          = 2.486 / 2

                                          = 1.243 m

area of the circle = pi r square

                                 = 22/7 * (1.243)square

                              =22/7 * 1.545

                                 = 4.855 m square

therefore, area of the circle = 4.855 m square