Mathematics, 20.09.2019 19:30 sbelgirl2000

If mangle upper a upper o upper c= 85°, mangle upper b upper o upper c = 2x + 10, and mangle upper a upper o upper b = 4x – 15, find the degree measure of angle upper b upper o upper cand angle upper a upper o upper b. the diagram is not to scale.
angle upper a upper o upper c is shown. point b is located on the interior of the angle in between upper a and upper c. ray upper o upper b is drawn.
a. mangle upper b upper o upper c= 30°; mangle upper a upper o upper b= 55°
b. mangle upper b upper o upper c= 40°; mangle upper a upper o upper b= 45°
c. mangle upper b upper o upper c= 45°; mangle upper a upper o upper b= 40°
d. mangle upper b upper o upper c= 55°; mangle upper a upper o upper b= 30°

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