If you take 438 divided by 4 = 109.5 109.5 + 74.5 = 184 74.5 x 4 = 298

let's factorise :
now, there are two cases :
case 1 :
case 2 :

We know the side relations of a right angled Triangle (that is Pythagoras therom)
now, let the missing side be x
- Hypotenuse² = sum of squares of other legs
that is ~
The correct choice is ~ B
Answer:
200
Step-by-step explanation:
i did a little bit of guessing and checking but the answer is 200 because if you multiply 200 by 1 it comes out to 200 and if you multiply it by .26 it comes out to 52. you multiply by .26 because it was 26% and you need to move the decimal over 2 when changing to decimal form. to find it immediately, you multiply 200 by 1.26 and it comes out to be 252 (sorry about the sloppy handwriting)
Base of the courtyard = sqrt(90) = 3sqrt(10)
Height of the courtyard = 10 + sqrt(3)
Area of the courtyard = 1/2 x 3sqrt(10) x (10 + sqrt(3)) = 15sqrt(10) + 3/2sqrt(30)