A circle has a central angle measuring 90° that intersects an arc of length 117.5 inches using 3.14 for pi what is the length of the radius of the circle

If m 17 27 90 63 ** picture is attached

Which set of reflections would carry trapezoid abcd onto itself? a) x-axis, y=x, y-axis, x-axis b) x-axis, y-axis, x-axis c) y=x, x-axis, x-axis d) y-axis, x-axis, y-axis, x-axis

Express the following as a function of a single angle. cos(60) cos(-20) - sin(60) sin(-20)