Answer:
See Below
Step-by-step explanation:
Since they are lines, and if two lines have angles that are congruent, then it has to be perpendicular. Angles sum up to 180, and since they are equal, it is 90.
Answer:
Multiplication
Step-by-step explanation:
You would use multiplication to find every combination like 4 entrees x 7 sides x 2 desserts
Answer:
7.142
Step-by-step explanation:
error=30-28
error=2
%error=error/actual valuex100
%error=2/28*100
%error= 7.142
Answer:
67.5 deg
Step-by-step explanation:
A full circle is 2(pi) radians. It is also 360 degrees.
2(pi) radians = 360 deg
pi radians = 180 deg
3(pi)/8 rad * (180 deg)/(pi rad) = 67.5 deg