Question

if the area if a rectangular field is (45a²-18a) and one of the side is 9a, what is its other side​

Answer 1

Answer:

(45a²-18a)÷9a

27a÷9a

value of a = 3.

Answer 2

Answer :-

Other side of the rectangular field = (5a - 2) units

Step-by-step explanation :-

Given:

• Area of rectangular field = 45a² - 18a
• One side = 9a

To find:

The length of other side = ?

Solution:

In this question, we mainly use the area of rectangle as Length times Breadth and then use the concept of polynomials while dividing.

Area of rectangular field = Length × Breadth

⇒ (45a² - 18a) = (9a) × Other side

⇒ Other side = (45a² - 18a) ÷ 9a

Taking (9a) as a common factor,

⇒ Other side = {9a (5a - 2)} ÷ 9a

⇒ Other side = (5a - 2) units

KNOW MORE:

• Perimeter of rectangle = 2 (Length + Breadth)