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Heron’s Formula — MATHS STD 9 — Question

Rajasthan BoardEnglish MediumSTD 9MATHSHeron’s Formula1 Mark
Question
Each side an equilateral triangle is 10cm long. The height of the triangle is:
✓

Answer

  1. $5\sqrt{3}\text{cm}$
Solution:
Height of equilateral triangle $=\frac{\sqrt{3}}{2}\times\text{Side}$
$=\frac{\sqrt{3}}{2}\times10$
$=5\sqrt{3}\text{cm}$

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