दाखिल करना

Mathematics for IGCSE & O level - Similarity (Section 1 - No. 17)

If a photograph is enlarged so that the length of each side is tripled, by what factor is the area increased?

3

6

9

12

स्पष्टीकरण

If the sides are tripled, the area is 3² = 9 times as large.

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