Find the length of the altitude of an equilateral triangle with side length 12 cm.

A4*sqrt(3) cm

B6*sqrt(3) cm

C8*sqrt(3) cm

D9 cm

Explanation

Altitude h = (sqrt(3)/2) * side = (sqrt(3)/2) * 12 = 6*sqrt(3) cm.

Exam Relevance

Topic: Geometry & Mensuration
Subtopic: Triangles

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