If AC = BC, arc AOC = 130° and CD is height, then what is value of angle x?

What is the measurement, in degrees, of the reference angle to an angle measuring 312°?

The vertices of a square are H(0, 2), I(2, 0), J(0, –2), and K(-2,0). Which statements are true of the image of HIJK after the given composition of transformations? Select all that apply. Step 1: (x, y) → (-y, x) Step 2: (x, у) — (Зх, Зу) H" (-2,0) HIJKE H'I'J'K' H'TJ'K'~ H"I"J"K" J" (6, 0) Y = xis a line of symmetry for the HIJK and H"I"J"K"