Mathematics for IGCSE & O level - Similarity (Section 3 - No. 3)
Two rectangles are similar. The first rectangle is 2cm wide and 4cm long. The second rectangle is 4cm wide. What is the length of the second rectangle?
4 cm
6 cm
7 cm
8 cm
Explanation
The scale factor is 4/2 = 2. Length = 4 * 2 - 8 cm
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