The value of the missing triangle sides and angles are XY = 20.9, YZ = 12.4 and ∠Y = 119°
What is an equation?
An equation is an expression that shows the relationship between two or more numbers and variables.
Sine rule is used to show the relationship between the sides and angles of a triangle.
In the triangle XYZ:
∠X + ∠Y + ∠Z = 180° (sine rule)
22 + 39 + ∠Y = 180
∠Y = 119°
Using sine rule:
XY / sinZ = XZ / sinY
XY / sin(39) = 29 / sin(119)
XY = 20.9
Also:
YZ / sinX = XZ / sinY
YZ / sin(22) = 29 / sin(119)
YZ = 12.4
The value of the missing triangle sides and angles are XY = 20.9, YZ = 12.4 and ∠Y = 119°
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