C-14-Q108mediumsingle_mcq

An isosceles (non-equilateral) triangle has lines of symmetry —

a $0$
b $1$
c $2$
d $3$

ব্যাখ্যা

An isosceles triangle has two equal sides, and the perpendicular bisector of the base (the axis through the apex) folds one equal side onto the other. This gives exactly $1$ line of symmetry.

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