2x-6=14 2x=20
a)x=10
-5x5=40 -5x=35
B)x=-7
12x+240=24 12x=-216
C) x=-18
EACH interior angle = 180 - (360 / # of sides)
EACH interior angle = 180 - (360/8)
EACH interior angle = 180 -45
EACH interior angle = 135
Answer:
The perimeter of a shape is the sum of the measurements of all sides. Since a rectangle have equal lengths and widths, you can just add the numbers twice.
So, 15 + 15 + 8 + 8. So the perimeter is 46 cm.
If i remember correctly.. it’s C, you cant have the X values repeating.