a rectangle has a length of 20cm and width of 18cm. what is the area. what is the perimeter
Mathematics · College · Thu Feb 04 2021
Answered on
Given:
length = 20 cm
width = 18 cm
Determine the area and the perimeter.
Formula for the perimeter of the rectangle:
P = 2 ( l + w)
Formula for the are of the rectangle:
A = lw
Solution:
Substitute the given values of l and w to the formula for the perimeter of the rectangle, then do the same for the formula for the area of the rectangle.
P = 2 ( l + w )
P = 2 (20 cm + 18 cm)
P = 2 (38cm)
P = 76 cm
Perimeter of the rectangle = 76 cm
A = (20 cm)(18 cm)
A = 360 cm^2
Area of the rectangle = 360 cm^2
Final answer:
Perimeter of the rectangle = 76 cm
Area of the rectangle = 360 cm^2