you need the ratio of the scale to find the answer.
5x-6=29
+6 +6
5x=35
/5 /5
x=7
N should be 21.6
write it as a proportion
5 = 12
9 n
Cross multiply
9x12=5n
108=5n
Divide
21.6= n
Answer: 62°
Step-by-step explanation:
Total angle in a triangle = 180°
40° + 78° + < N = 180°
118° + <N =180
<N = 180 -118
<N=62°
Answer:
B
Step-by-step explanation: