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

When a square of side (a+b+c) is divided into (3) parts in both directions, how many small regions are formed?

Answer and explanation

Correct answer: 9

The direct answer is option C, 9. Imagine drawing two internal lines parallel to each side of the square. In one direction, the square is divided into 3 strips, and in the perpendicular direction it is also divided into 3 strips. Each of the 3 rows intersects each of the 3 columns, so the small regions must be counted by multiplication: 3 × 3 = 9. Option A, 3, counts only the rows or only the columns, not all enclosed regions. Option B, 6, adds the number of rows and columns, but grid regions are formed by their intersections, so addition is unsuitable. Option D, 12, has no valid counting basis for this 3-by-3 grid. The symbols a, b and c describe lengths and may affect the sizes of the regions, but they do not change the number of regions. Memory cue: number of grid regions = number of rows × number of columns.

Related tags

Three-Term SquareGrid ModelVisual IdentitiesArea ModelVisual 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.