A wedge is cut out of a circular cylinder of radius 4 by two planes. One plane is perpendicular to the axis of the cylin- der. The other intersects the first at an angle of 30 along a diameter of the cylinder. Find the volume of the wedge.

2. angles qrt and qst both measures 156 degrees.

step-by-step explanation:  

we have been given a diagram of a circle and we are told that measure of arc qvt is 156 degrees.  

we can see from our given diagram that angle qrt and angle qst subtends to arc qvt.

since we know that angles subtended by the same arc at the circumference are always equal.

by angle subtended by same arc theorem, measure of angle qrt and angle qst will be equal to the measure of arc qvt.

therefore, angles qrt and qst both measures 156 degrees and 2nd statement is the correct choice.

answer: 0.26

i used the calculator on google