Circle O is shown below.

If m∡R=24°, what is m∡O

Without more information or a picture, it is impossible to answer this question.

To find the measure of angle O in circle O, we need to use the property that the measure of an angle inscribed in a circle is half the measure of its intercepted arc.

Since angle R is given as 24 degrees, we know that it intercepts an arc with a measure of 24 degrees. Therefore, the measure of arc RO is 24 degrees.

Since angle O is inscribed in the same arc RO, its measure is also half of 24 degrees.

Therefore, the measure of angle O is 24 degrees divided by 2, which equals 12 degrees.

So, m∡O = 12°.