Reading Material - English for Basic Mathematics

7). a circle enclosed by

8). A line meeting the

two radii and an arc is called

Circumference but which

a sector

(when produced) does not
intersect it is called a tangent

9). A line which intersects the

10). A circle which passes

circumference in two places

through the vertices of a tiangle is


is called a secant.

called the circumcircle of the
triangle, and the center is called
its circumcentre. The circle is
circumscribed around the triangle

11). The angle subtended at the
canter by an arc or circle
is equal to twice the angle

12). These circles have the same

subtended by that arc at the

point of origin. They are

circumference.

concentric.