Question

plz ans the question...

Answer 1

Answer:

Area of a circle= 2πr = πd                                 Reason=(2r=d)

1386= πd

Let π be 22/7

1386*7/22= d

In 1386 and 22, there is a common factor 22

63*7=d                441=d

441 cm is the diameter of the circle with area 1386 sq. cm.

Answer 2

Answer:

approximately 42.01

Step-by-step explanation:

A=πr^2

d=2r

d=2√A/π•√1386/π

d=approximately 42.00845.

d=approximately 42.01