Each of the four shaded rectangles has an area of 21 cm square and a perimeter of 20cm what is the perimeter of the square formed in middle

16cm

Step-by-step explanation:

Given

--- rectangles

Required

The perimeter of square in the middle

The area of a rectangle is:

So, we have:

The perimeter is:

So, we have:

Divide by 2

Make L the subject

Substitute in

Open bracket

Rewrite as:

Expand

Factorize

Factor out W - 3

Solve for 7

We have:

This means that:

The length (l) of the square is:

---- the difference between the dimension of the rectangle

The perimeter is:

this is a very good question

step-by-step explanation:

i got a hair cut today from my mom not to flex just to flex kim jon un is one rad fellow i'd say you'd need to take the hairline in kinda like a box shape like someone rammed a lego brick into your head. from there you really need to take the top up keeping with that boxy aesthetic, finally coat the whole thing with gel if your country economics are failing or whatever you can just coat it with the starving children's food rations. about 5 orphans per strand is a good ratio. good luck with the fresh cut my dude

hope it

step-by-step explanation:

x^(1/6) · x^(1/6) · x^(1/6)   ·x^(1/6) = x^(4/6)   since we add the exponents

4/6 can be simplified to 2/3

the simplified form is x^(2/3)