Need asap 20 two similar triangles are shown on the following coordinate grid: which set of transformations has been performed on triangle abc to form triangle a′b′c′? dilation by a scale factor of 4 followed by reflection over the x-axis dilation by a scale factor of 2 followed by reflection over the x-axis dilation by a scale factor of 4 followed by reflection over the y-axis dilation by a scale factor of 2 followed by reflection over the y-axis

your answer is the last one

step-by-step explanation:

divide the length of a'c' by the length of ac to get a scale factor of two

& then reflect vertically (over the y-axis)

so your answer is dilation by a scale factor of 2 followed by reflection over the y-axis

where is the figure

δabc ≅ δdcb by sas because

db ≅ ac . . given (side)

bc ≅ bc . . reflexive property (side)

∠dbc ≅ ∠ acb . . alternate interior angles where transversal bc crosses parallel lines bd and ac (included angle)