Answer:
70°
Step-by-step explanation:
All triangles' angles are added up to 180°
30 + 80 + x = 180
110 + x = 180
x = 180 - 110
x = 70
Answer:
30, 9, 15, 29
Step-by-step explanation:
Triangle 1, yellow
Triangle 2, blue
Triangle 3, green
Triangle 4, red
Answer:
Yes
Step-by-step explanation:
The intersection point of 10x+4y=18 and x+9y=19 is (1,2) on a graph.
Answer:
360 whole circle minus the 60 you don't want =300
Step-by-step explanation: