Given a circle with radius of 2, which is the degree measure of an arc whose length is 1/2 pie ?

Formula to find the arc length is:

So, if we want to measure the central angle then it will be:

Where, s= arc length,

r = radius of the circle

= central angle in degrees.

According to the given problem, and r = 2.

So, first step is to plug in these values in the above formula.

π has been cancel out from both top and bottom.

=45

So, measure of central angle is 45°.

dunno

step-by-step explanation:

whole numbers.

step-by-step explanation:

we are given the average monthly rainfall (in millimeters) model r(m) for the years 1900-2009 as a function of the month number m.

as we can see m is taken for the number of months for years 1900-2009.

we know that number of months can't be a negative number or decimal number or a fraction.

so, the number of months could be only positive whole numbers.

therefore, whole numbers is more appropriate for the domain of r.