Hard Math Class 9 Level 2

A rectangle has perimeter 100 cm and length is 10 cm more than breadth. What is its area?

आयत का परिमाप 100 cm है और लंबाई चौड़ाई से 10 cm अधिक है। क्षेत्रफल क्या होगा?

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Correct Answer

B. 600 cm² / 600 cm²

Explanation

l + b = 50 and l = b + 10 give b = 20 and l = 30 so area is 600 cm².

l + b = 50 और l = b + 10 से b = 20 और l = 30 इसलिए क्षेत्रफल 600 cm² है।

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