Question

The area of rectangle is 180 cm square if its length is 15 CM then its ratio of its breadth to its length is

Answer 1

To Find:-

• Find the ratio of length and breadth of rectangle.

Given:-

• Area of rectangle is 180cm². The length is 15cm.

Solution:-

We know that

️ ➭ Area of rectangle = l × b

️ ➭ 180 = 15 × b

️ ➭ 180 = 15b

️ ➭ b = 180/15

️ ➭ $\tt \boxed { \: b \: = \: 12cm \: }$

The ratio of length and breadth is

️ ➭ l : b

️ ➭ 15 : 12

️ ➭ 5 : 4

Verification:-

️ ➭ Area = l × b

️ ➭ 180 = 15 × 12

️ ➭ 180 = 180

Answer 2

${\large{\bold{\sf{\underline{Understanding \; the \; question}}}}}$

➝ This question says that the area of rectangle is 180 cm² , it's length is 15 cm then we have to find it's ratio of it's breadth to it's length.

${\large{\bold{\sf{\underline{Given \; that}}}}}$

➝ Area of rectangle is 180 cm²

➝ It's length is 15 cm

${\large{\bold{\sf{\underline{To \; find}}}}}$

➝ Ratio of it's breadth to it's length.

${\large{\bold{\sf{\underline{Solution}}}}}$

➝ Ratio of it's breadth to its length = 4:5

${\large{\bold{\sf{\underline{Using \; concept}}}}}$

➝ Area of rectangle formula

${\large{\bold{\sf{\underline{Using \; formula}}}}}$

➝ A of rectangle = L × B

${\large{\bold{\sf{\underline{They \; denotes}}}}}$

➝ A denotes Area

➝ L denotes Length

➝ B denotes Breadth

${\large{\bold{\sf{\underline{Full \; Solution}}}}}$

~ Finding breadth of rectangle firstly

➝ Area of rectangle = Length × Breadth

➝ 180 = 15 × B

➝ 180/15 = B

➝ 12 cm = B

➝ B = 12 cm

~ Finding ratio of it's B to it's L

➝ Ratio of it's B to L

➝ 12 : 15

➝ 4 : 5