Top triangle: if the know angle measures are 90 and 55 and there are a total of 180, 90 + 55 + a = 180. This means that angle a = 35°
Bottom triangle: if a is 35, the angle connected to it is 35 because they are vertical angles. The angles of this triangle are 35 + 120 + b = 180. Angle b = 25°
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The one that says You need a certain amount of this compound in your bloodstream to maintain good brain function.
Two triangles put together can make different shapes. You can have a diamond for instance, or a parallelogram
