Answer:
129
Step-by-step explanation:
the 2 angles together will equal 180 because that is half of a circle a circle is 360so what you do is subtract 180 minus 51 and get 129
4/6=0.6666666667
0.6666666667×39=26 millimeters
0.19880716 should be your answer
Sorry if wrong
Answer:
4/420=105
Step-by-step explanation:
decompose 42 and divide by 4 is 10 and is 20 divided by 4 is 5
Answer: width- 60
Length- 120
Step-by-step explanation: