Answer:
1
Step-by-step explanation:
81-1= 80
80 / 2 = 40
D = 40
So:
40(2) = 81 - 1
Add the 2x values and divide by two, then add the 2y values and divide by 2
answer is (-2,½).
Answer:
78 degrees
Step-by-step explanation:
All inner angles of a triangle make a sum of 180 degrees. Given 41 and 61 add up to 102, that leaves 78 degrees left to make 180
