Question

if the area of an equilateral triangle is 81 root 3 cm find its height

Answer 1

Hi friend
--------------
Your answer
--------------------

Area of an equilateral triangle = 81√3 cm²

Now,
--------

Let the sides be a .

Then,
----------

√3/4 × a² = 81√3

=> a² = (81√3 × 4)/√3

=> a² = 324

=> a = √324

=> a = 18 cm

Then,
-----------

Height = √3/2 × a = (√3/2 × 18) cm = 9√3 cm

HOPE IT HELPS

Answer 2

Answer:

HOPE U COULD UNDERSTAND

Step-by-step explanation: