Question

121) Length of the boundary of a square =
21 Length of the boundary of a rectangle =
123) Length of the boundary of a triangle =​

Answer 1

Answer:

Length of boundary of a square= 4a

Length of boundary of a rectangle= 2(l+b)

Length of boundary of a triangle= a+b+c

Answer 2

$\huge\underline\mathcal{To \: find}$

i)Length of the boundary of a square

iil Length of the boundary of a rectangle

iii) Length of the boundary of a triangle

$\huge{\underline{\underline{\mathcal{\pink{Answer}}}}}$

i)Length of the boundary of a square

= 4 × length of a side.

=4a

ii) Length of the boundary of a rectangle

= 2(lenght+breadth)

=2(a+b)

iii)Length of the boundary of a triangle

=Sum of all sides.

=a+b+c

Thanku ✌✌