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

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

Using vector method, prove that the angel in a semi circle is a right angle.

A number is as much greater than 36 as is less than 86. Find the number.

Prove that an angle inscribed in a semi-circle is a right angle using vector method.

Prove that an angle inscribed in a semi-circle is a right angle using vector method.

Prove that angle in the same segment of a circle are equal.

A number is such that it is as much greater than 84 as it is less than 108. Find the number.

A number is such that it is as much greater than 84 as it is less than 108. Find the number.

Prove that The length of tangent from an external point on a circle is always greater than the radius of the circle.

Which of the following statements are true (T) and which are false (F): Sum of the three angles of a triangle is 180^0 A triangle can have two right angles. All the angles of a triangle can be less than 60^0 All the angles of a triangle can be greater than 60^0 All the angles of a triangle can be equal to 60^0 A triangle can have two obtuse angles. A triangle can have at most one obtuse angles. In one angle of a triangle is obtuse, then it cannot be a right angled triangle. An exterior angle of a triangle is less than either of its interior opposite angles. An exterior angle of a triangle is equal to the sum of the two interior opposite angles. An exterior angle of a triangle is greater than the opposite interior angles