allery12 cm দৈৰ্ঘ্য আৰু 8 cm প্ৰস্থ বিশিষ্ট এটা আয়তক্ষেত্ৰৰ পৰিসীমা নিৰ্ণয় কৰক:
A40 cm
B48 cm
C36 cm
D96 cm
Answer & Solution
Correct answer: A. 40 cm
পৰিসীমা = 2 * (দৈৰ্ঘ্য + প্ৰস্থ) = 2 * (12 + 8) = 2 * 20 = 40 cm।
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