a photograph that measures 20 cm by 15 cm is enlarged so that its length becomes 28 cm. what does the width become?
\(\frac{width}{distance} = \frac{15}{20} = \frac{3}{4}\)
This means that ,assumining the dimensions stay the same, the width will be equal to three quaters of the length
∴ When length=28cm
width = 0.75 × 28 = 21cm