JEE Main 202227 Jun, Morning shiftMathematicsMediumProperties of Triangle19× since 2002
The lengths of the sides of a triangle are 10 + x², 10 + x² and 20 2x². If for x = k, the area of the triangle is maximum, then 3k² is equal to :
JEE Main 2022 · 27 Jun, Morning shift · Q5029