Find the composite figure in this image

84 Cm

First cut the figure into 2 parts

Next find the area of the first rectangle (12 times 5)

Then find the area of the 2nd rectangle (4 times 11-5)

So you get 60 and 24

Then add both together and you have the area!

Hope this helps!!!

step-by-step explanation:

the ratio of red paint to blue paint is always 9/7. that means that, whatever x's value, (4x+12)/(4x-4) has that same ratio. so, set up an equation and cross-multiply to solve for x:

9/7 = (4x+12)/(4x-4)

9(4x-4) = 7(4x+12)

36x - 36 = 28x + 84

8x - 36 = 84

8x = 120

x = 15