Circles

The segment joining the center of a circle to a point on the circle is called the ...

The diameter of a circle is 14 cm. Its radius is ...

The circumference of a circle with diameter 7 cm using $\pi =\frac{22}{7}$ is ...

The area of a circle with radius 7 cm using $\pi =\frac{22}{7}$ is ...

A circle has diameter 20 cm. Using $\pi =3.14$, its circumference is ...

The area of a circle with radius 10 cm using $\pi =3.14$ is ...

The circumference of a circle with radius 14 cm using $\pi =\frac{22}{7}$ is ...

The area of a circle with diameter 28 cm using $\pi =\frac{22}{7}$ is ...

The arc length of a circle with radius 14 cm and central angle $90^{\circ }$ using $\pi =\frac{22}{7}$ is ...

The area of a sector of a circle with radius 14 cm and central angle $90^{\circ }$ using $\pi =\frac{22}{7}$ is ...

The circumference of a circle is 44 cm. Using $\pi =\frac{22}{7}$, its radius is ...

The area of a circle with radius 21 cm using $\pi =\frac{22}{7}$ is ...

The arc length of a circle with radius 21 cm and central angle $120^{\circ }$ using $\pi =\frac{22}{7}$ is ...

The area of a sector of a circle with radius 21 cm and central angle $60^{\circ }$ using $\pi =\frac{22}{7}$ is ...

The circumference of a circle is 62.8 cm. Using $\pi =3.14$, its area is ...

The area of a sector is 154 cm${}^2$. If its radius is 14 cm and $\pi =\frac{22}{7}$, the central angle of the sector is ...

Two circles have radii 7 cm and 14 cm. The ratio of their areas is ...

A point is 10 cm from the center of a circle with radius 6 cm. The length of the tangent from that point to the circle is ...

A square with side 14 cm contains a circle touching all four sides. Using $\pi =\frac{22}{7}$, the area of the square outside the circle is ...

A wheel with radius 35 cm rotates 100 times. Using $\pi =\frac{22}{7}$, the distance traveled is ...