In ΔOPQ, o = 5.9 cm, q = 5.5 cm and ∠Q=142°. Find all possible values of ∠O, to the nearest 10th of a degree.

Does the construction demonstrate how to copy an angle correctly using technology a) yes the distance between points a and f was used to create circle h b) yes the distance between points f and g was used to create circle h c) no the distance between points a and f was used to create circle h d) no the distance between points f and g was used to create circle h

Quadrilateral ghij has coordinates g(5, 1), h(4, -3), i(6, -1), and j(2, 1). if the quadrilateral is reflected over the line y = x, what are the coordinates of h'?

The curved part of the figure is the semicircle what is the best approximation for the area of this figure