-7 is the correct result of that equation
Answer:
22 meters
Step-by-step explanation:
Area of yellow rectangle: 6x4=24
Area of gray rectangle: 8x=24
x=3
Thus, the perimeter is 3+3+8+8, which is 22.
72 + 74 is 146.
The angle sum of a triangle is 180.
180 - 146 is 34.
