It’s the 31 hope this helps you
So essentially an adjacent angle is when two angles have a common side and a common vertex.
So knowing that we can determine from the picture all the adjacent angles:
D) <2 and <3 are adjacent angles
E) <1 and <3 are adjacent angles
F) <1 and <5 are adjacent angles
I hope this helps.
Answer:

Step-by-step explanation:
Remember the formula:

V= Volume r= radius

Round your answer to the nearest hundredth.

multiply 6 x 6 to get 36 and 7 x 11 to get 77.
6/7 x 6/11 = 36/77