Respuesta :

Answer:

The radius of the circle is approxiamtely 9 cm

Step-by-step explanation:

Area of a circle = [tex]\pi[/tex]r²

If the area is 245.5 cm²,

therefore, the radius r = [tex]\sqrt{area/\pi }[/tex]

taking [tex]\pi[/tex] = 3.143

r = [tex]\sqrt{254.5/3.143}[/tex]

r = [tex]\sqrt{80.97}[/tex]

r ≈ 9

Therefore, the radius of the circle is approximately 9 cm

Answer:

radius=2.793304096 or nearly is 2.793

Step-by-step explanation:

area for circle=pi.(half radius square)

24.5=3.14* (half radius square)

half radius square=7.802547771

after under the half radius square in the root square , then the final answer the radius =2.793304096 or nearly is 2.793