Answer:
31.6
i think
Because 39 1/2 divided by 1 1/4 is 31.6
Hope This Helps
(6 1/2 + 2 2/5) + 2 1/2
8 9/10 + 2 1/2
= 11 2/5
Answer:
31-3n
Step-by-step explanation:
d=-3
a1=28
an= 28+(n-1)(-3)=28-3n+3
an=31-3n
Answer:
(n-2)180 (this is the equation to find the sum of interior angles)
(4-2) 180 (plug in the amount of angles in the polygon and then solve)
2* 180
360
360 - 115 -100- 73= 72 (360 is the sum of all angles for this polygon. so subtract the known angles to find the unknown one)
measure of angle B is 72 degrees
Step-by-step explanation: