Q. 133.6( 10 Votes )

The perimet

Answer :

Given: Base of an isosceles triangle = (3/2) times of equal sides and perimeter = 42 cm.

To Find: Area of the triangle.


Concept Used:


If sides of a triangle are a, b, and c, then area of a triangle is given by:



Where s = semiperimeter of the triangle



Assumption:


Let the equal sides of the triangle be ‘a’ cm.


Explanation:



Perimeter = 42





a = 12 cm


Therefore, the sides of the triangle are 12 cm, 12 cm, and 8 cm.




s = 21 cm


Now,




Area = 9√273 cm2


Hence, the area of the triangle is 9√273 cm2 .


Rate this question :

How useful is this solution?
We strive to provide quality solutions. Please rate us to serve you better.
Related Videos
NCERT | Heron's FormulaNCERT | Heron's FormulaNCERT | Heron's Formula49 mins
Smart Revision | Heron's FormulaSmart Revision | Heron's FormulaSmart Revision | Heron's Formula39 mins
Champ Quiz | Know About Heron's FormulaChamp Quiz | Know About Heron's FormulaChamp Quiz | Know About Heron's Formula53 mins
Heron's FormulaHeron's FormulaHeron's Formula43 mins
NCERT | Master all Question Types of Heron's FormulaNCERT | Master all Question Types of Heron's FormulaNCERT | Master all Question Types of Heron's Formula46 mins
Smart Revision | Quiz on Heron's FormulaSmart Revision | Quiz on Heron's FormulaSmart Revision | Quiz on Heron's Formula45 mins
Heron's formulaHeron's formulaHeron's formula32 mins
Quiz | Heron's FormulaQuiz | Heron's FormulaQuiz | Heron's Formula44 mins
NCERT | IMP Qs on Herons FormulaNCERT | IMP Qs on Herons FormulaNCERT | IMP Qs on Herons Formula44 mins
Champ Quiz | Heron's FormulaChamp Quiz | Heron's FormulaChamp Quiz | Heron's Formula41 mins
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
caricature
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