Mathematics
NULL
Medium
Question
The sides of a triangle are in the ratio 1/2 : 1/3 : 1/4. If the perimeter is 52 cm, the length of the smallest side is ________?
A
9cm
B
10cm
C
11cm
D
12cm
✓ Official correct answer
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A
9cm
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B
10cm
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C
11cm
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D
12cm
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Explanation
Ratio = 6 : 4 : 3. Parts sum to 13; 13k = 52 ⇒ k = 4. Smallest side = 3k = 12 cm.