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+12#
Subtracting
#10w = 90#
Dividing both sides by
#w = 9#
Then the length is
and the area is