Question

Let the longest side of a triangle be of length I. Prove that the perimeter of the triangle lies
between 2l and 3l.​

Answer 1

Answer:

let the sides of a 2 D be arbil where is the longest side.

then

atbils lal athalsal

Also

la bb

etlath

let lills atbtl

form ) and(in)

21 subbed <3l