Answer:
X=80
Step-by-step explanation:
I suppose the graph will be like this:
Since isosceles trapezoid, red lines are parallel.
X+x+20= 180
2x+20=180
2x=160
X=80
We want to make a 4 players team, and there are total 8 players. As we know the order of selection does not matter in a team of players, only the combination of players matters.
So we would use concept of Combinations and It will be choose 4 out of 8 players.
The formula for Combination is given as follows :-

Hence, Total number of different teams = 70 combinations.
Answer:
oh god
you posted this question 5times already xd
the answer is 4th option maybe :O
B. same angle, congruent
c. both angles are 90 degrees so it equals 180 when added together
e. congruent angles
g. supplement means when 2 angles have a sum of 180 and since both are 90 it has a sum of 180
h.