The angle in a semicircle measures

The measure of the angle in a semicircle is

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

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

The angle subtend by a semicircle at the centre is _________.

Prove analytically : An angle in a semicircle is a right angle.

The angle subtend by a semicircle at the remaining part of the circumference is __________.

angle ACB is an angle in the semicircle of diameter AB = 5 and AC : BC = 3:4. The area of the triangle ABC is

angle ACB is an angle in the semicircle of diameter AB =5 and AC : BC = 3 : 4 The area of the triangle ABC is