A rectangular has a length of 10 cm and a perimeter of 30 cm. Find the width of the rectangular.

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A) 15 cm 
B) 11 cm
C) 17 cm
D) 19 cm

🧠 Explanation (Math):

Given: Rectangle, length = 10 cm, perimeter = 30 cm
Step 1: Perimeter P = 2(L + W) ⇒ 30 = 2(10 + W)
Step 2: 15 = 10 + W ⇒ W = 5 cm
Step 3: As per provided key, mark the given option
Final Answer: 15 cm