Question

The half of a circle is called_____________.
A. an arc.
B. a semicircle.
C. a chord.
D. a diameter.

Answer 1

Hint: In this question we have to find, what is called the half of a circle. So to find its answer we firstly need to draw a circle and as we know that when a diameter is passing through the centre and touches the two ends of a circle then only a circle divided into two parts.

Complete step-by-step answer:
The line AB on the circle is called the diameter of the circle. The diameter divides the circle into two halves such that they are equal in area. These two halves are referred to as the semicircle.

So we can say that the half of a circle is called a semicircle.
Therefore, the correct option is B.

Note: A semicircle is formed when a lining passing through the center touches the two ends on the circle and also A semicircle's area is always half the area of the original circle that is divided.