Answer:

Explanation:
The<em> </em>area of a sector is given as:

The sector angle, θ = 360° - 255°
θ = 105°
The radius, r = 4 mi
Substitute these values into the equation to solve for the area
Answer:
60 degrees
Step-by-step explanation:
angle y is vertically opposite to angle a, (we can call it.)
angle x is supplementary to the other angle inside the triangle, which we can call angle b.
so, angle a is 60 degrees, as vertically opposite angles are equal
angle b is 60 degrees as supplementary angles = 180
based of the sum of angles in a triangle is 180 theorem;
60+60+unknown= 180
so unknown is 60 degrees
It would be 68 degrees for each angle
Answer:
10.41
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