Question

if the area of the circle is 1386 m²,it's diameter is​

Answer 1

Answer:

Area of the circle is 1386 sq cm. ∴ Diameter of the circle = 42 cm

Answer 2

Answer:

Hi friend

Step-by-step explanation:

we know,

area of circle = 4*pi*r^2

1386=2*(22/7)*r^2 m

r^2=1386*(7/44) m

r^2=220.5 m

r= root(220.5) m

r=14.89 m

diameter = 2*radius

diameter = 2*14.89 m

diameter=29.78 m

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