Answer:
1/2
Step-by-step explanation:
1/4 (4x - 8) + 3x =0
distribute the 1/4
x-2+3x=0
combine like terms
-2+4x=0
move -2 to the other side [by ADDing +2 to each side
4x=2
divide [by 4 on both sides]
x=1/2
20 • 12 is 240
1/2 • 12 • 4 is 24
so 264
The polygon would have 18 sides. Hope this helps!
Answer: 7
Explanation: both triangles are congruent, so the mid segment is half of 14