#9. There are 180 degrees in a triangle. We already know two of the sides which added together make 112. Then we do, 180-112=68
#10. We do the same process. 90 + 60 = 150
150-180= 30
#11. To find whether or not any three numbers can make a triangle, two of the numbers must equal more than the remaining number. But this has to be the case for any combination. 6+7=13. 13 is larger than 11. So yes it can.
#12. 8+2=10 which may be bigger than 6 but, 6+2=8. Which is equal to 8. So no, it cannot make a triangle.
I’m still working out the first question
Replace u,x and y withyour values
u+xy=2+9*6=2+54=56
I know this is late and you probably got the answer but just in case its C. 5. :P
Answer: D=Pie x C
Step-by-step explanation:
trust me and plz make me the brillienrttest
Because vertical angles are congruent, angle 78 is congruent to angle x: x=78.
