Question

pls ans this question

Answer 1

Given
no. of rectangles =3
dimension of each rectangle = 10 cm x 4cm
i.e. length=10cm
breath =4cm
sol-
perimeter of the figure = 10+4+10+(10-4)+4+10+4+10+(10-4)+4
=68cm

Answer 2

perimeter of rectangle = 2( L + b ) units
L = 10 cm
b= 4 cm
perimeter = 2( L + b ) cm
= 2( 10 + 4 )cm
= 2(14) cm
=28 cm

for three }
rectangular tiles } = 3×perimeter of 1 rectangle
= 3 × 28 cm
= 84 cm
therefore the resultant perimeter is 84 cm

HOPE IT HELPS YOU