Q. 84.5( 15 Votes )

The area of an is A. √15 cm2

B. √15/2 cm2

C. 2√15 cm2

D. 4√15 cm2

Answer :

a = 2, b = 4, c = 4

s = (a + b + c)/2


s = (2 + 4 + 4)/2 = 10/2 = 5.


Area(Δ) = √s(s-a)(s-b)(s-c)


Area(Δ) = √5(5-2)(5-4)(5-4)


Area(Δ) = √5×3×1×1


Area(Δ) = √15cm2


Hence, the correct option is A.

Rate this question :

How useful is this solution?
We strive to provide quality solutions. Please rate us to serve you better.
Related Videos
Properties of TrianglesProperties of TrianglesProperties of Triangles54 mins
Congruency RuleCongruency RuleCongruency Rule17 mins
Champ Quiz | Area of TriangleChamp Quiz | Area of TriangleChamp Quiz | Area of Triangle53 mins
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
NCERT | Important Qs. on Herons FormulaNCERT | Important Qs. on Herons FormulaNCERT | Important Qs. on Herons Formula42 mins
Champ Quiz | Know About Heron's FormulaChamp Quiz | Know About Heron's FormulaChamp Quiz | Know About Heron's Formula53 mins
Quiz | Herons FormulaQuiz | Herons FormulaQuiz | Herons Formula44 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
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