I have 0 idea how to do this plz help
2 answers:
Answer:
x = 11
Step-by-step explanation:
Because of Vertical Angle Theorem, the inner angle that shares a side with 92 is 88.
So you use 88+4x+8+3x+7=180 because all triangles equal 180.
Combine like terms and get 103+7x=180
Subtract 103 on both sides and get 7x=77
Divide by 7 and x =11
So answer is x = 11
Answer:
x = 11
88°
40°
52°
Step-by-step explanation:
Angles on a straight line add up to 180
92 + ? = 180
∴ 180 - 92 = 88
Angles inside a triangle add up to 180
88 + (3x + 7) + (4x + 8) = 180
∴ 88 + (3x + 4x) + (8 + 7) = 180
∴ 103 + 7x = 180
∴ 7x = 180 - 103
∴ 7x = 77
∴ x = 11
3x + 7 =
3(11) + 7 =
33 + 7 = 40
4x + 8 =
4(11) + 8 =
44 + 8 = 52
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