Members of the marching band lined up in six rows of of eight how many total members are there identify

Use circumcenter theorem to solve for the given values

From the top of a tree a bird looks down on a field mouse at an angle of depression of 50°. if the field mouse is 40 meters from the base of the tree, find the vertical distance from the ground to the bird's eyes.

Given: ab ≅ bc and ao ≅ oc ok − angle bisector of ∠boc find: m∠aok