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Sagot :
Answer:
x = 18
Step-by-step explanation:
Y = 90
Z = 25
X = 3x + 11
Triangle = 180
180 = 90 + 25 + (3x + 11) --> combine 90 and 25
180 = 115 + (3x + 11) --> minus 115 both sides
65 = 3x + 11 --> minus 11 both sides
54 = 3x --> divide 3 on both sides
x = 18
VERIFY:
3(18) + 11 = 54 + 11 = 65
65 + 90 + 25 =
155 + 25 = 180
Answer:
X = 18°
Step-by-step explanation:
As we can see it a right angled triangle
so <y =90°
Now
3x + 11° + 25° + 90° = 180°{being sum of angles of triangle}
3x + 126° = 180°
3x = 54°
X = 18°
Hope it will help you
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