MP Board · Class 6 · Mathematics · MensurationIf all sides of a triangle are equal to 7 cm, its perimeter is:
Step-by-Step Solution
An equilateral triangle has three equal sides. The perimeter is the sum of all sides, which is 7 + 7 + 7 = 21 cm (or 3 × 7 = 21 cm). Therefore, the correct option is B.
Detailed Options Breakdown
Option : 14 cm
Incorrect choice. This distractor represents a common misunderstanding of the core principles of Mensuration.
Option 1: 21 cm (Correct Answer)
Correct choice. Refer to the step-by-step verified solution guidelines above for details.
Option 2: 28 cm
Incorrect choice. This distractor represents a common misunderstanding of the core principles of Mensuration.
Option 3: 49 cm
Incorrect choice. This distractor represents a common misunderstanding of the core principles of Mensuration.
💡 Study Guide: This question tests core syllabus concepts from Mensuration. For formulas, key summaries, and mock exam reference guides, read the full Mensuration Revision Notes.