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RRB NTPC Graduate Tier 1 2025 Shift-2 📅 05 Jun, 2025

Calculate the area of a triangle whose sides measure 3 cm, 4 cm, and 5 cm.

A
6 cm²
B
10 cm²
C
12 cm²
D
8 cm²
Result Summary
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RRB NTPC Graduate Tier 1
2025 • 05 Jun, 2025 • Shift-2
Calculate the area of a triangle whose sides measure 3 cm, 4 cm, and 5 cm.
Correct Answer
6 cm²
Geometric Triangle Identification: Examine the given side lengths: 3, 4, and 5. By applying the Pythagorean test (3² + 4² = 9 + 16 = 25 = 5²), the structure ......
Ref/Book : RRB NTPC Graduate Tier 1 2025
Ref. Subject Mathematics
Chapter -
Ref. Topic Mensuration
Pg. No -
💡 Analysis & Explanation
Geometric Triangle Identification ▼
Examine the given side lengths: 3, 4, and 5. By applying the Pythagorean test (3² + 4² = 9 + 16 = 25 = 5²), the structure is confirmed as a perfect right-angled triangle.
Formula Application ▼
The definitive area formula for a right triangle is Area = (1/2) * Base * Height. The two shorter sides logically serve as the base and the perpendicular height.
Calculation Execution ▼
Injecting the metrics yields: Area = (1/2) * 3 * 4.
Final Computation ▼
Simplifying the expression evaluates to (1/2) * 12 = 6.
Conclusion ▼
The precise enclosed area stands at 6 cm².
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