A theme is help pls
A. a statement given at the beginning of a text.
B. one message conveyed throughout a text.
C. a person who is quoted often within a text.
D. a phrase that is repeated often in a text.

In triangle △abc, ∠abc=90°, bh is an altitude. find the missing lengths. ah=4 and hc=1, find bh.

Abird on top of a 200 ft bridge tower sees a man standing on the lower part of the bridge (which is 50 ft above the ground). the angle of depression from the bird is 26 ̊. how far is the man from the base of the bridge tower? with explanation and pictures .

Given: circle o, cd is diameter, chord ab || cd. arc ab = 74°, find arc ca.