An isosceles triangle has two sides of equal length. The third side is 7 less than twice the length of one of the other sides. I
1 answer:
You might be interested in
Answer:
the length of the rectangle is, 21 in.
Step-by-step explanation:
Area of the rectangle(A) is given by:
.....[1]
where,
l is the length of the rectangle
w is the width of the rectangle.
As per the statement:
The width of a rectangle is 9 in. shorter than its length.
⇒
It is also given that:
The area of the rectangle is 252 in².
⇒A = 252 in².
Substitute in [1] we have;
⇒
⇒
Factorize this equation:
Split the middle term;
⇒
⇒
⇒
By zero product property we have;
and
⇒ and
Since, length cannot be in negative
⇒
Therefore, the length of the rectangle is, 21 inches.