To find x in the figure, we need to use the properties of angles in triangles.
Let's start by labeling the angles in the figure:
Angle B = 30° (given)
Angle A = x° (unknown)
Angle C = 50° (given)
Angle D = 70° (given)
In triangle ABC, the sum of the interior angles is 180°:
Angle A + Angle B + Angle C = 180°
Plugging in the known values, we have:
x° + 30° + 50° = 180°
Combining like terms, we get:
x° + 80° = 180°
Next, we can isolate x by subtracting 80° from both sides:
x° = 100°
Therefore, x = 100°.
Find x in the figure
Angles of triangles Practice
1 answer