X= 31 because all the angles in a triangle equal 180 and 58+91 is 149, 180-149=31
Can you do the choice options. the answer would be 2x+5 if he simplified.
<span>Given:
AB = x + 16
BC = 4x + 11
AC= 77
We can safely assume that,
AB + BC = AC
x + 16 + 4x + 11 = 77
5x + 27 = 77
5x = 77 - 27
5x = 50
x = </span>

x = 10
Hence,
AB = x + 16 = 10 + 16 = 26
Hence, proved.
Answer:
16
Step-by-step explanation:
Since DF and BC are similar, their ratios are:
12:3
4:1
Since AB is similar to ED:
Substituting the ratio:
x:4
Hence, x = 16
Hence, AB = 16
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