Answer:
52.5 cm
Explanation:
Assuming the scale factor is the same in all directions, for poster height h, we have ...
height/width = h/(35 cm) = (15 cm)/(10 cm)
h = (35 cm)(15/10) = 52.5 cm . . . . . multiply by 35 cm
The poster is 52.5 cm high.
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