Question

the circumference of the circle is 31.4 cm find the radius of the area and the circle take 5 is equal to​

Answer 1

Answer:

QUESTION

the circumference of the circle is 31.4 cm find the radius of the area and the circle take 5 is equal to.

ANSWER

$\fbox \red{circumference} = 31.4 \\ \\ 2\pi \: r = 31.4 \\ \\ \fbox \green{radius} = \frac{31.4}{2 \times 3.14} \\ \\ \fbox \pink{radius} = \frac{314}{100} \times \frac{100}{2 \times 314} \\ \\ \fbox \blue{radius} = \frac{1}{10} \times \frac{100}{2 \times 1} \\ \\ \fbox \orange{radius} \frac{10}{2} \\ \\ \fbox \red{radius} = 5cm \\ \\ \\ \\ \fbox \green{area \: of \: circle} = 3.14 \times ( {25}^{2}) = 78.5cm ^{2}$

I hope it helps you

#SILENT GIRL ANSWER

Answer 2

Answer:

circumference =3 area

2πr = 3π r^2

2r = 3r^2

2= 3r

3/2= r