Question

calculate size of unknown angle if one side is 90 degree and other is 50 degree​

Answer 1

Answer:

if it is triangle so -

the sum of triangle = 180

90 + 50 + c = 180

140 +c  = 180

c  = 180-140 = 40°

so the unknown angle is 40 °

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Answer 2

Answer:

I tell you to ANSWER you can read the description.... illiterate