The length of a certain rectangle is #11# times a certain number and the breadth is #13# times that same number. The area is #572# square units. What is the number?
1 Answer
Feb 4, 2018
Explanation:
We know that
#A = "length" xx "breadth"#
Thus:
#572 = (11x)(13x)#
#572 = 143x^2#
#4 = x^2#
#x = +- 2#
A negative answer is impossible, thus
Hopefully this helps!
