The course of a ship is shown. The ship sails from port A via port B and C to port D. On its way from Port B to port D, The ship

Question

2 years ago

8

The course of a ship is shown. The ship sails from port A via port B and C to port D. On its way from Port B to port D, The ship

turns counterclockwise at port C with an angle b=150 degrees. Ports B, C and D form a circle with center at port D. If AB is tangent to a circle, what is the measure of angle a at port B, at which ship turns left on its way from Port A to port C?

Mathematics

1 answer:

beks73 [17] · Answer 1 · 2023-04-15T02:30:06+03:00

beks73 [17]2 years ago

7 0

keeping in mind that the radius in a circle is always the same length, namely DB = DC, and also recalling that the point of tangency is always a right-angle, Check the picture below.