Is the image an example of perpendicular lines?

In triangle opq right angled at p op=7cm,oq-pq=1 determine the values of sinq and cosq

Atriangle with all sides of equal length is a/an triangle. a. right b. scalene c. equilateral d. isosceles

(mc 02.03) what set of reflections and rotations would carry rectangle abcd onto itself? reflect over the y-axis, reflect over the x-axis, rotate 180° rotate 180°, reflect over the x-axis, reflect over the line y=x reflect over the x-axis, rotate 180°, reflect over the x-axis rotate 180, reflect over the y-axis, reflect over the line y=x