dis r problem sums plz explain ot properly...
Attachments:
Answers
Answered by
0
1)
given p = 100 cm and l = 30 cm
perimeter = 2(l+b)
100 = 2(30+b)
100= 60+b
b= 100 - 60
b = 40.
so , breadth = 40 cm .
area = length x breadth = 60 x 40 = 2400 cm.^2
2)
given l = 120 m and b = 80 m
area 120 x 80 = 960 m
given per metre cost is ₹2.
960 m = 960 x 2 = ₹1920.
given p = 100 cm and l = 30 cm
perimeter = 2(l+b)
100 = 2(30+b)
100= 60+b
b= 100 - 60
b = 40.
so , breadth = 40 cm .
area = length x breadth = 60 x 40 = 2400 cm.^2
2)
given l = 120 m and b = 80 m
area 120 x 80 = 960 m
given per metre cost is ₹2.
960 m = 960 x 2 = ₹1920.
Similar questions