Question

If a angle on the circumference of a circle is subtended by a diameter of the circle what is the angle

Answer 1

Answer:

The angle is 90 degrees

Step-by-step explanation:

Required

Angle subtended by the diameter

The theorem to solve this is:

The angle subtended by an arc is twice the angle it subtends.

The diameter forms $180^\circ$ on the circle, so we have:

$2*\theta = 180^\circ$

Where $\theta$ is the angle subtended

Solve for $\thets$$\theta$

$\theta = \frac{180^\circ}{2}$

$\theta = 90^\circ$