# <span lang="EN-US

Let us assume a be the side of the equilateral triangle

We know that,

Area of an equilateral triangle = sq units

It is given that,

Area of the equilateral triangle = 81 cm2

81 cm2 = a2

a2 = = 324

a = = 18 cm

Height of an equilateral triangle = a

Since, the value of a is 18 cm

Therefore,

Height = × 18

= 9 cm

Rate this question :

How useful is this solution?
We strive to provide quality solutions. Please rate us to serve you better.
Try our Mini CourseMaster Important Topics in 7 DaysLearn from IITians, NITians, Doctors & Academic Experts
Dedicated counsellor for each student
24X7 Doubt Resolution
Daily Report Card
Detailed Performance Evaluation view all courses RELATED QUESTIONS :

Find the area of RS Aggarwal & V Aggarwal - Mathematics

Each side of an eRS Aggarwal & V Aggarwal - Mathematics

A kite in the shaRS Aggarwal & V Aggarwal - Mathematics

The sides of a quRD Sharma - Mathematics

Each side of an eRS Aggarwal & V Aggarwal - Mathematics

The question consRS Aggarwal & V Aggarwal - Mathematics

If the base of anRS Aggarwal & V Aggarwal - Mathematics

The perimeter of RS Aggarwal & V Aggarwal - Mathematics

Match the followiRS Aggarwal & V Aggarwal - Mathematics