What is the length and the width of the rectangle?
A rectangle has a perimeter of 102 cm and the given area (378 cm). Its length is 6 more than four times its width. What is the length and what is the width of the rectangle?
A rectangle has a perimeter of 102 cm and the given area (378 cm). Its length is 6 more than four times its width. What is the length and what is the width of the rectangle?
1 Answer
Dec 7, 2017
The width is
Explanation:
If the width is
102 = 2w+2(4w+6) = 10w+12102=2w+2(4w+6)=10w+12
Subtracting
10w = 9010w=90
Dividing both sides by
w = 9w=9
Then the length is
and the area is