Math, asked by Farhan111111, 1 year ago

Mensuration (Perimeter and area of plane figure)
1 and 2 both plz do at least one also

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Answers

Answered by cosmonaut
1
1. length= 135m
breadth= 60m
perimeter = sum of all sides
= 135+135+60+60
=390m
cost of fencing
1m= rupees 60
390 m = 390×60
= rupees 23400

2. l:b=7:4
let l be 7x and b be 4x
then 7x+7x+4x+4x=440
on solving it x= 20
then l = 7x= 140 m
and b= 4x= 80m
Answered by Nik1121
0
1.L=135m B=65m
l×b=)
135 \times 65 =
8775m
cost of 1m=rs.60
cost of 8775m=60×8775=526500

2.7x×
7x  + 4x = 440
11x=440
x = 440 \div 11
=40m

7x=7×40=280m

4x=4×40=160m
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