Question

Plz answer last question and im lost!

Answer 1

Answer:

$\pi$ radian

Step-by-step explanation:

We know that angle for a full circle is 2$\pi$

In the given figure shape is semicircle

hence,

angle for semicircle will be half of angle of full circle

thus, angle for given figure = half of  angle for a full circle = 1/2 * 2$\pi$ = $\pi$

Thus, answer is $\pi$ radian

alternatively, we also know that angle for a straight line is 180 degrees

and 180 degrees is same as $\pi$ radian.