Assuming the two angles are supplementary, the angle measuring x is equal to 33.75, and the angle measuring 3x+45 is equal to 146.25.
Step-by-step explanation:
x+(3x+45)=4x+45=180
4x+45=180
-45 -45
4x=135
÷3 ÷3
x=33.75
3x+45=146.25
Answer:
x = 0
Step-by-step explanation:
9x - 7 = - 7
9x = - 7 + 7
9x = 0
x = 0/9
x = 0
Answer:
37
Step-by-step explanation:
The answer is 12. How did I get it?
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A B C
AC = 21 (the whole line adds up to 21)
AB = 9 (half of the line is 9)
BC = AC-AB
21- 9 = 12 so BC is 12
Let's prove triangle DEF:
10/7=1.428571429 different to 1.5=9/6, then triangle DEF is not similar to triangle ABC
Let's prove triangle GHI:
3.5/7=0.5=3/6, then triangle GHI is similar to triangle ABC
Answer: Option B. GHI
