The length of a rectangle is five times its width. If the perimeter of the rectangle is 60 cm, find ts area.

Step-by-step explanation:

Let the width be 'w'

Length of a rectangle = 5w

Perimeter of a rectangle = 60 cm

Area of a rectangle = ?

First, finding the value of width ' w '

plug the values

⇒

Distribute 2 through the parentheses

⇒

Collect like terms

⇒

Swap the sides of the equation

⇒

Divide both sides of the equation by 12

⇒

Calculate

⇒ cm

Finding the value of length ( l )

Substitute the value of w

⇒

⇒

Finally, Finding the area of rectangle having length of 25 cm and width of 5 cm

plug the values

⇒

Multiply the numbers

⇒

Hope I helped!

Best regards!!

answer:  

step-by-step explanation:

here x represents the height of the pole,

and, the height of the shadow of the pole is 12 feet.

also, the angle of elevation from the top of the pole is 40°,

therefore,

by the low of sine,

which is the required equation for finding the value of x,

need points to ask question

step-by-step explanation: