Answer:
<h2>
1240.4 mm²</h2>
Step-by-step explanation:

X = 9
you multiply both sides by 3 because you have to get rid of it and what you do to one side you do to the other then you divide both sides by 2 to isolate the variable. i hope that makes sense.
Answer:
I dont know the answer but I can help
Step-by-step explanation:
every shape is 360 degrees so the ones with squares in the corner is 90 degrees add all the angles you know and subtract that from 360 then ÷ by the a glass that are missing hope that helps
Answer:
1936
Step-by-step explanation:
x² + 87 = (x +1)²
x² + 1)² - x² =87
(x² + 2x +1) = 87
2x + 1 = 87 ⇒ x = 44
44² = 1936