Yeardleigh Using Photo Enlarging Machine She Has 34 Photograph She Wants Enlarge Machine Wil

Yeardleigh is using a photo-enlarging machine. She has a 3*4 photograph she wants to enlarge. The machine will make enlargements in four sizes: 5*7, 8*10, 12*16, and 16*24. If Yeardleigh wants an enlargement that is similar to the original, what size(s) should she choose? Explain.