Question

AD, BE, and CF are all diameters of the circle. The measure of angle AOB is 40 degrees. The measure of angle DOF is 120 degrees. Find the measure of angle BOC.

Answer 1

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Each alveolus is cup-shaped with very thin walls. It's surrounded by networks of blood vessels called capillaries that also have thin walls. The oxygen you breathe in diffuses through the alveoli and the capillaries into the blood.

Answer 2

Answer:

160 degrees.

Step-by-step explanation:

since, angle AOC and angle FOD are vertically opposite angles

and angleAOB is 40degrees.

so,

120°+40°=160°