Question

7. Chaman wants to fence his field, which measures 8 m by 7 m. The cost of
fencing is rs.
5 per metre. How much money does he need to fence the ent
field?​

Answer 1

Answer:

₹280

Step-by-step explanation:

we have to find perimeter of field

rectangle perimeter=l×b

=8×7

=56

₹5 per metre

for 56 metre how much

5×56=280

₹280 is need to fence the field

Answer 2

Answer:

perimeter of a rectangle = 2(l+b)

Step-by-step explanation:

perimeter of a rectangle = 2(l+b)

= 2( 8m+9m)

= 2( 17m)

= 34m

given,

the cost of fencing per metre = Rs 5

therefore, cost of fencing 34m = 34 × 5rs

= 170rs