Question

the perimeter of square is 28 cm and that of an equilateral triangle is 21 cm compare the lenghts of the side of the two figure

Answer 1

perimeter of square=28cm
perimeter of triangle=21cm

peri of square=4×side
28 =4×side
28÷4 = side
7 = side
perimeter of triangle=s+s+s
21=3s
21÷3=s
7=s
side of square=peri of triangle=7

Answer 2

Step-by-step explanation:

Perimeter of square=4×Side

28cm =4×Side

28/4 =Side

7cm=Side

Perimeter of equilateral triangle=3×Side

21cm=3×Side

21/3=Side

7cm=Side

7cm=7cm

Both length are equal