Plzzz
a square tabletop has an area of (9x^2-90x+225) cm^2. the dimensions of the tabletop have the form cx-d, where c and d are whole numbers. write an expression for the perimeter of the tabletop. then find the perimeter when x=25 centimeters.

Step-by-step explanation:

Given: A square tabletop has an area of .The dimensions of the tabletop have the form cx-d, where c and d are whole numbers.

To find: Expression for the perimeter of the tabletop and the perimeter when x=25 centimeters.

solution: Since, we know that area of square =, and we are given Area==

⇒

⇒

⇒

Thus, side=.

Now, Perimeter of square is given as =4s

⇒ which is the required expression for the perimeter.

Perimeter when x=25cm, .

Therefore, Perimeter=240 cm.

there are no short passages to look at

sss (side, side, side)

sas (side, angle, side)

asa (angle, side, angle)

aas (angle, angle, side)

hl (hypotenuse, leg)