Answer:
Rectangles! Nice.
Step-by-step explanation:
This is a very simple problem. Let's first represent the width of the rectangle as the variable x.
Then, we know that the length of the triangle is x+2. See where I'm going with this?
The formula for the perimeter of an rectangle is [tex]P=2*Length+2*Width[/tex].
All we have to do next is just input our values for the length and width, and you'll be golden!
[tex]56=2(x+2)+2(x)\\56=4x+4[/tex]
Next to subtract 4 from both sides and then to divide by 4!
[tex]52=4x\\x=13[/tex]
There's your answer! Don't know why Brainly is bugged right now.
NOTE: If you can't read the answer above, the width is 13cm. This also means that the length is 15cm.
Hope this helps!
Stay safe!
