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Question
Find the missing length if the perimeter is 30 cm.
Find the missing length if the perimeter is 30 cm.
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Solution
The correct option is A 10 cm
Perimeter is the total length of the boundary of a given object. Perimeter = Sum of all sides
30 = 3 + 4 + 2 + 2 + 2 + 4 + 3 + ?
30 = 20 + ?
? = 30 − 20 = 10 cm
Therefore, the missing length is 10 cm.
Perimeter is the total length of the boundary of a given object. Perimeter = Sum of all sides
30 = 3 + 4 + 2 + 2 + 2 + 4 + 3 + ?
30 = 20 + ?
? = 30 − 20 = 10 cm
Therefore, the missing length is 10 cm.
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