Flag Analytical Geometry> triangles...
question mark

There is a point inside an equilateral triangle which is at a distance1,2 and 3 from three sides . the area of triangle ________

Arpit Kumar Behera , 11 Years ago
Grade 11
anser 2 Answers
Vinti Singhai

Last Activity: 11 Years ago

Assume triangle to be ABC and point inside be P.Let each side be''a''.ar(ABC) = ar9PAB) +ar(PBC) + ar(PAC)Root3*a^2/4=1/2*a*1+1/2*a*2+1/2*a*3Get a and then the area.                                                                     Vinti SinghaiaskIITians Faculty,B.E(Honors) in Elec &Comm, Gold Medalist

Aditya kulkarni

Last Activity: 7 Years ago

First consider 🔺 ABC... Triangle ABC is an equilateral triangle.. Let the point inside the triangle be `P`.... According to Viviana`s theorem (search on internet for more details about theorem) sum of distance is equal to the height on equilateral triangle 🔺 which is 1+2+3=6.... Let the altitude meet base at point M.. In triangle AMB, by tan60=AM/BM...BM=2√3.. Total base (BC) is 2*BM..Hence BC=4√3.. Now, Area of triangle ABC = 1/2*BC*AM..Hence,area of triangle ABC 🔺 is 12√3.. .. Thanks for reading... 😊

Provide a better Answer & Earn Cool Goodies

Enter text here...
star
LIVE ONLINE CLASSES

Prepraring for the competition made easy just by live online class.

tv

Full Live Access

material

Study Material

removal

Live Doubts Solving

assignment

Daily Class Assignments


Ask a Doubt

Get your questions answered by the expert for free

Enter text here...