Update

Muft Shiksha™ एक 100% Free Education Portal है 🇮🇳, जिसका उद्देश्य Class 9–12 के हर विद्यार्थी तक High-Quality Education को पूरी तरह मुफ्त पहुँचाना है। 🇮🇳 हम मानते हैं कि अच्छी शिक्षा किसी student की आर्थिक स्थिति पर निर्भर नहीं होनी चाहिए। 🇮🇳 हर विद्यार्थी को वही Quality Study Material, MCQs, Quizzes, Exam Preparation, Concept-Based Learning और Bilingual Support मिलना चाहिए, जो आमतौर पर महंगी Coaching या Premium Platforms में मिलता है। Muft Shiksha™ 🇮🇳 इसी सोच के साथ बनाया गया है

Subjects
0 reads0 ratings0 helpful

What is the relation between the rectangle model \((x+4)(x+4)\) and the square model \((x+4)^2\)?

Answer and explanation

Correct answer: Both represent the same area

The direct answer is B: both expressions represent the same area. The area of a rectangle is length multiplied by breadth. Here both dimensions are \(x+4\), so its area is \((x+4)(x+4)\). When the same factor is multiplied by itself, it is written as a square: \((x+4)(x+4)=(x+4)^2\). Geometrically, a rectangle whose length and breadth are equal is a square, so the two models describe the same region. Option A is wrong because the two expressions are equal, not different. Option B is correct. Option C is wrong because a product of two lengths gives area, not perimeter; the perimeter would be \(4(x+4)\) for the square. Option D is wrong because \((x+4)^2\) is an area expression, not a line segment. Memory cue: a repeated factor \(u\cdot u\) is written \(u^2\), and equal rectangle dimensions make a square.

Related tags

Rectangle AreaSquare AreaVisual ModelsPerfect SquareVisual Models Of IdentitiesExploring Algebraic IdentitiesMathematicsClass 9 Mcq

Was this question useful?

No ratings yetWrite a review / Rate this question

Student Reviews

No published reviews yet.

Add Muft Shiksha to your Home Screen

In Safari, tap Share, then Add to Home Screen.