Calculate the third angle of triangle in which two of an angle are 103° and 42°

x = 35°

Explanation:

→ Angles in a triangle add up to 180°

→ We will call the third value x

→ So we can set up this equation

⇒ x + 103° + 42° = 180°

( Simplify )

⇒ x + 145° = 180°

( Minus 145° from both sides )

⇒ x = 35°

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