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