2 years ago

The measures of angles of a triangle are shown in the figure below solve for

Mathematics

1 answer:

irina1246 [14]2 years ago

4 0

Answer:

x=51

Step-by-step explanation:

There are two ways you can go about this

You can either say that the sum of interior angles in a triangle is equal to 180 so you do 180-39-90=51

Or you could use the exterior angle theorem, which means that 90=39+x, simplify that and you get that x=51

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