Respuesta :

Answer:

Step-by-step explanation:

Since all the angles of triangle add up to 180 degrees,

Missing angle +100 +43=180.

Let the missing angle be 'x'.

Then, x + 100 +43 =180

or, x + 143 = 180

or, x = 180 - 143 = 37 degrees

So, the next angle is 37 degrees

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