Question

que no 1) find the perimeter of rectangle in which.
1)Length = 7m 36cm breadth = 158 cm
2)Length =5.8cm breadth = 2.6 cm
3) Length = 12m 78 cm breadth = 9m 9cm
​

Answer 1

Answer:

1)1788 cm

2)16.8cm

3)4374 cm

Step-by-step explanation

1)Length = 7m 36cm breadth = 158 cm

l= 7m 36 cm

1 m=100 cm

7 m =700 cm

therefore l=700+36=736 cm

perimeter =2(l+b)

=2(736+158)

2(894)

=1788 cm

2)Length =5.8cm breadth = 2.6 cm

l= 5.8 cm ,b=2.6 cm

perimeter =2(l+b)

=2(5.8+2.6)

2(8.4)

=16.8cm

3) Length = 12m 78 cm breadth = 9m 9cm

​l= 7m 36 cm

1 m=100 cm

12 m =1200 cm

therefore l=1200+78=1278 cm

​b= 9m 9 cm

1 m=100 cm

9 m =900 cm

therefore l=900+9=909 cm

perimeter =2(l+b)

=2(1278+909)

2(2187)

=4374 cm