Question

15. The sides of a rectangle are 5 cm and 4 cm .Construct a rectangle of the same area
with width 7 cm.​

Answer 1

Answer:

Hii mate

your answer will be 2.8 cm approx

area of rectangle=l×b

=5×4=20 cm²

area of new rectangle is equal to the area of first rectangle=20cm²

area of rectangle=L×B

20=7×l

20÷7=l

2.8cm=l

Step-by-step explanation:

i hope it helped you

Answer 2

Answer:

1 .area of rect has dimensions 5*4= 20cm2

2.l*b = area=20

l*7= 20

l=20÷7=2.85cm approx

draw accordingly