- A88 cm
- B64 cm
- C128 cm
- D96 cm
Step-by-Step Solution
Joining along the 20 cm sides gives a rectangle 20 cm long and 24 cm wide (12 + 12). Perimeter = 2 × (20 + 24) = 88 cm.
Answer: A) 88 cm
Two identical rectangular cards, each 20 cm by 12 cm, are joined along their longer (20 cm) sides to make one big rectangle.
What is the perimeter of the big rectangle?
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