Answer:
I hope this is what you're looking for. Hope this helps.
AB + AC = AC
3y - 1 + 7y = 29
10y = 29 + 1 = 30
y = 30/10 = 3
Therefore, AB = 3(3) - 1 = 9 - 1 = 8.
answer - true
all rectangles have four sides, and a shape is a quadrilateral if it has four sides
therefore, all rectangles are quadrilaterals
Answer:
Step-by-step explanation: see attachment below
Angle 5 is 142 hopefully that helps