z=18
3z+4+2z-4+90=180
5z+4-4+90=180
5z+90=180
5z=90
Answer:
762
Step-by-step explanation:
1 inch
The perimeter is the sum of the lengths of the sides:
Perimeter = 3/23 + 9/23 + 11/23 = (3 + 9 + 11)/23 = 23/23 = 1