<h2>
Answer:</h2>
<u>Answer is 10 </u>
Step-by-step explanation:
I hope this is correct!
It means -1x - 2 = 3 those bars make all the number positive
8 + 4 = 3x
12 = 3x
divide both sides by 3
x= 4
Area of the bottom triangle = 1/2 x 10 x 8.7 = 43.5 cm²
Area of the 3 rectangles = 3(10 x 6) = 180 cm²
Area of the top triangle = 3 (1/2 x10 x 4) = 60 cm²
Total surface are = 43.5 + 180 + 60 = 283.5 cm²
Answer: 283.5 cm²
