6)a
if we put n as the number of sides in a regular polygon, the formula to find the measure of each angle is

so the answer will be

they each measures 144 degrees
good luck
Answer:
total cost = 5 + 2t
Step-by-step explanation:
Answer:
length=10 feet
Step-by-step explanation:
if you take your 2 widths and add them its 4. then take your perimiter and subtract 4 from it then divide by 2 which is 10 feet
Answer:
-4
Step-by-step explanation: