in a triangle ABC if A is 72°and b is 63° fine c
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Answer:
angle à+ angle b+angle ç=180°{sum of all angles of a triangle
72°+63°+angle c=180°
135+angle c=180°
angle c=180-135
=45
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Answer:
Note that three sides of a triangle always equals to 180°
so if one side is 72 and the other side is 63
to find the missing angle we must do as follows:
72+63-180=45
therefore c=45°
***To determine to measure of the unknown angle, be sure to use the total sum of 180°. If two angles are given, add them together and then subtract from 180°.
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