△lmn is the result of a reflection of △ xyz across the y-axis. which angle in the image corresponds to ∠z in the pre-image? ∠l ∠m ∠n

we have been given that is reflection image of across the y-axis and we have to find which angle from the given image corresponds to .

we know that a refection gives us mirror image of the point or object we are reflecting and line of reflection which in our case is y-axis acts as a mirror. line of reflection   is equidistant from object or point and its image.

now let us look at our given image. after looking at our image we see that y-axis is halfway between x and l,y and m and also z and n.

we can see that corresponds to .   so our answer is .