the height of an equilateral triangle is 9√3. find its side
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Answer:18cm
Explanation:-
let the side be 'a' cm.
height of an equilateral triangle:-
(√3/2)*side
= 9√3=(√3/2)*side
=2(9√3)=√3a
=18√3=√3a
=a = 18cm.
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side is 18 cm of the triangle
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