What is the sum of the exterior angle measures, one at each vertex, of a convex polygon with 19 side’s

If f(x)= sqrt4x+9+2, which inequality can be used to find the domain of f(x)?

The midpoints of the sides of the large square are joined to form a smaller square. what is the area of the smaller square

*let m∠cob = 50°30’, m∠aob = 70° and m∠aoc = 20°30’. could point c be in the interior of ∠aob? why? a. point c could be the interior of aob but it is not the only case b. point c is the interior of aob c. point c is not the interior of aob d. the given is not possible for the plane geometry answer