The equation represents two equivalent expressions [ similar sides ]
Hope this helps!
Ok so,,,, first you find the area of a trapezoid which is b1 plus b2 times h over 2 so it is 9 plus 7 times 6 divided by two then you get 48 and you subtract by 20 times 24 bc its the area of rectangle so 480 minus 48 which is 432 cm squared
I got 200 from a octagon with the diameter of 10