The one that says the combined area of the 4 triangles......
The probability is 7/21 * 7/21, or 0.0159.
Answer:
69
Step-by-step explanation:
The total of all angles of a heptagon is 900.
Therefore
x+125+119+117+145+133+140 = 900
x+779 =900
x= 900-779
x =121 degrees
8.60232526704 should be your answer.
Hope this helped :)