Hard Math Class 9 Level 1

A rectangle has perimeter 74 cm and length is 7 cm more than breadth. What is its area?

आयत का परिमाप 74 cm है और लंबाई चौड़ाई से 7 cm अधिक है। आयत का क्षेत्रफल क्या होगा?

A 300 cm² / 300 cm² B 330 cm² / 330 cm² C 360 cm² / 360 cm² D 370 cm² / 370 cm²
Show answer and explanation
Correct Answer

B. 330 cm² / 330 cm²

Explanation

l + b = 37 and l = b + 7 give b = 15 and l = 22 so area is 330 cm².

l + b = 37 और l = b + 7 से b = 15 और l = 22 इसलिए क्षेत्रफल 330 cm² है।

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