Question

If the area of the circle is 1386 m2, its diameter is _____.

Answer 1

Answer:

42 m

Step-by-step explanation:

area of circle=$\pi$$r^{2}$

1386= 22/7*$r^{2}$

$r^{2}$=1386*7/22

$r^{2}$=63*7

$r^{2}$=3*3*7*7

r=21 m

d=2r

d=2*21

d=42 m