contestada

Find the radius, and the approximate circumference and area of the circle below. (Use 3 for \pi)

Find the radius and the approximate circumference and area of the circle below Use 3 for pi class=

Respuesta :

(Pi value = 3)

Given diameter of circle = 12 inches

Radius of circle :

[tex] = \tt\frac{diameter}{2} [/tex]

[tex] = \tt\frac{12}{2} [/tex]

[tex] = \tt6 \: inches[/tex]

Thus, the radius of this circle = 6 inches

Circumference of this circle :

[tex] = \tt2\pi r[/tex]

[tex] =\tt 2 \times 3 \times 6[/tex]

[tex] = \tt36 \: inches[/tex]

Thus, the circumference of this circle = 36 inches

The area of this circle :

[tex] = \tt\pi {r}^{2} [/tex]

[tex] =\tt 3 \times 6 \times 6[/tex]

[tex] = \tt108 \: {inches}^{2} [/tex]

Thus, the area of this circle = 108 inches²

Therefore,

Radius = 6 inches

Diameter = 12 inches

Circumference = 36 inches

Area = 108 inches²