If the area of a square is 144 sq.m., then what will be the length of its side
Answers
heyaa !!!
Area of square = side × side
given that area of square = 144
144 = (side)^2
12 m = side
length of side is 12 m.
thanku❤️
Answer:
Since we are dealing with quadratic equations, we can solve this two ways. A square's area is one side to the power of 2 (why it's called "squared").
s2 = 144
In this case, we can take the square root of both sides. The square root of something squared is the base by itself.
√x2 = √144
x = 12
Yes, -12 is a square root of 144, but we measure using positive numbers.
Here's something else...
s2 = 144
s2 - 144 = 0
I'm guessing you've learned the difference of squares.
s2 - 144 = 0
(s + 12)(s - 12) = 0
For two factors to equal 0, one factor has to equal 0.
s + 12 = 0
s = -12
As described, we disregard this answer.
s - 12 = 0
s = 12
Either way, we get the same answer. Hope this helps!