Question

The breadth of a redangel is 5m. If its Lenth is twice its breadth, then what is its area​

Answer 1

Answer:

breadth = 5m

length =10m

area = l*b

10 *5 = 50m²

Answer 2

Answer:

40 cm

Step-by-step explanation:

Let breadth=x

⇒ Length=2x

⇒ Area of rectangle=2x×x

=2x

2

After the given changes;

length=2x−5

Breadth=x+5

Area=2x

2

+75

⇒(2x−5)(x+5)=2x

2

+75

2x

2

−5x+10x−25=2x

2

+75

5x=75+25=100

⇒x=20

⇒ Breadth=20cm

Length=40cm.