Cái này là toán tiếng anh nha.

The perimeter of a rectangle is 24cm.If sides of the rectangle are natural numbers,find the maximum value of the area of the rectangle

The perimeter of a rectangle is 34 cm. If its length is increasing 5 cm and its width is increasing 3 cm then the area is increasing 80 . Find the original area of the rectangle.
Answer: The original area of the rectangle is  ........ cm²

The perimeter of a rectangle is 34 cm. If its length is increasing 5 cm and its width is increasing 3 cm then the area is increasing 80cm² . Find the original area of the rectangle.
Answer: The original area of the rectangle is ....... cm².

The area of a rectangle is 80. The width and length are integers. Find the smallest value of the perimeter. 

Giúp mình nhé 

The area of a rectangle increased by 57cm2 when each side increases by 3cm.The perimeter of the original rectangle is .... cm.

The area of a rectangle increased by 57cm2 when each side increases by 3cm . The perimeter of the origial rectangle is .......... cm .

The area of a rectangle is 1176. If the sides of the rectangle are integers, how many different value(s) of the perimeter of this rectangle is / are there?

Diện tích của một hình chữ nhật là 1176. Nếu các cạnh của hình chữ nhật là số nguyên thì có bao nhiêu giá trị khác nhau của chu vi hình chữ nhật này?

a rectangle has length p and breadth p where p,q are intergers . If p, q satisfy the equation pq+q=13+q^2. What is the maximun of the area of the rectangle?