Question

in an equalateral triangle of side 3√3cm , find the length of altitude​

Answer 1

Answer:

The length of the altitude is 4.5 cm

Answer 2

ALTITUDE of an EQUILATERAL TRIANGLE of side 3√3 is 4.5cm

◆Equation to find ALTITUDE of EQUILATERAL TRIANGLE of side a is

'h = √3/2a'

◆Thus, h =(√3/2)× (3√3)=4.5cm

◆To know how these equation is derived, check the attachment given.

◆From figure,

Sin 60° = h/(3√3)

Solving further, where sin60° = √3/2

◆h = (√3/2)×(3√3)

◆h = (√3/2)a. (Here, a = 3√3)

◆Hence the solution.