Prove that the angle in a segment shorter than a semicircle is greater than a right angle.

Prove that the angle in a segment smaller than a semi-cricle is greater than a right angle.

Prove that the angle in a segment greater than a semi-circle is less than a right angle.

Prove that the angle in a segment greater than a semi-circle is less than a right angle.

Prove that the angle in a segment greater than a semi-circle is less than a right angle.

Prove that the angle in a segment greater than a semi-circle is less than a right angle.

Write True or False The angle in the segment of a circle which is greater than a semicircle is an acute angle.

Using vectors, prove that angle in a semicircle is a right angle.

The angle in the segment of a circle which is less than a semi circle is an obtuse angle.

Prove that the angle in a semicircle is right angle. (By vector method)