Question 113Asked in BPSC TRE 3.0 (2024) Mathematics Class 9-10

The perimeter of an equilateral triangle having area 400√3 sq.m isक्षेत्रफल 400√3 sq.m वाले समबहु त्रिभुज का परिमाप है

क्षेत्रफल 400√3 sq.m वाले समबहु त्रिभुज का परिमाप है
  1. A120 m120 m
  2. B150 m150 m
  3. C90 m90 m
  4. DMore than one of the aboveउपर्युक्त में से एक से अधिक
  5. ENone of the aboveउपर्युक्त में से कोई नहीं
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Correct answer: (A) 120 m120 m

Explanation

(√3/4)a² = 400√3 gives a² = 1600, a = 40 m; perimeter = 120 m.(√3/4)a² = 400√3 से a = 40 मी; परिमाप = 120 मी।

From BPSC TRE 3.0 (2024) Mathematics Class 9-10 — Previous Year Paper

This is question 113 of BPSC TRE 3.0 (2024) Mathematics Class 9-10 — Previous Year Paper. See all questions of this paper with answers, or attempt the paper as a timed online test to get your score and all-India rank.