Question

21. Show lidl JUU
In an equilateral triangle of side 313 cm, find the length of the altitude

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Answer 1

Answer:

$4.5 \: {cm}^{2}$

Step-by-step explanation:

Given:

$side = 3 \sqrt{3} \: cm$

$altitude = \frac{ \sqrt{3} }{2} \times side$

$= \frac{ \sqrt{3} }{2} \times 3 \sqrt{3} = \frac{9}{2} = 4.5 \: cm$