Answer:
117+x=180°(sum of straight line)
Step-by-step explanation:
x=180-117
x=63
A) 1.5, you can cross off C and D because that's area. the only reasonable would be 1.5 and 5.8. But 5.8 would mean cutting half of the board.
Step-by-step explanation:
you just have to use the definition of union and cross section
A= 374.12 but im not sure