Question

CD is the Diameter. The measure of Arc CD is 11x Find the length of the radius in the circle.

Answer 1

Answer:

r = 11 units

Step-by-step explanation:

Given that,

The measure of Arc CD is 11x

The arc is making an angle of 180°.

We know that,

Length of the arc, $l=r\theta$

Where

r is the radius of the circle

So,

$r=\dfrac{l}{\theta}\\\\r=\dfrac{ 11\pi}{\pi}\\\\r=11$

So, the radius of the circle is equal to 11 units.