Find the dimensions of a rectangle whose perimeter is 28 meters and whose area is 40
square meters.
Answers
Answered by
5
Question ⏬
Find the dimensions of a rectangle whose perimeter is 28 meters and whose area is 40
square meters.
Answer ⏬
Check out the attachment please.
#KEEPLEARNING
HOPE I AM CLEAR.
WARM REGARDS.
(≧▽≦)
Attachments:
Answered by
8
Hmm okay... no prblm
Perimeter of rectangle = 28
2 (l + b ) = 28
l + b = 14
l = 14 - b --- (i)
area = 40
l × b = 40
Now, From (i)...
( 14 -b ) × b = 40
(14 - b²) = 40
b² - 14b + 40 = 0
After splitting the zeroes, we will get,
(length) = 10(breadth) = 4
ㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤ
Similar questions