The degree measure of a semi-circle is

Q. An angle of 1 degree is obtained by dividing a semi-circle into ____ equal parts.​

Q. Fill in the blanks.

(1) The two segments of a circle made by a diameter are called ....... .
(2) The measure of an angle in a semi-circular region is ......... degrees.
(3) All points on a circle and all points in the interior of a circle together form the ....... .

Q. Angle subtended by a diameter in a semi-circle is ____ degrees

Q. Write the truth value (T/F) fo the following with suitable reasons:

(i) A circle is a plane figure.

(ii) Line segment joining the centre to any point on the circle is a radius of the circle.

(iii) If a circle is divided into three equal arcs each is a major arc.

(iv) A circle has only finite number of equal chords.

(v) A chord of a circle, which is twice as long is its radius is a diameter of the circle.

(vi) Sector is the region between the chord and its corresponding arc.

(vii) The degree measure of an arc is the complement of the central angle containing the arc.

(viii) The degree measure of a semi-circle is 180°