Question

the sides of an equilateral triangle is 3•5 cm . find its perimeter

Answer 1

if sides of an equilateral triangle is 3.5, then its perimeter is of

in equilatral triangle all three sides are equal,

so its perimeter is= side×3
                               3.5×3=10.5cm

Answer 2

One side of the equilateral triangle= 3.5
Then 3 sides = 3×3.5
= 10.5