Question

Find the value of x for the following figure.​

Answer 1

(x - 6) + 42 + 65 = 180

x - 6 + 107 = 180

x - 6 = 180 - 107

x - 6 = 73

x = 73 + 6

x = 79

Answer 2

Answer:

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Step-by-step explanation:

Sum of angles of a triangle is 180°

  ∠A + ∠B + ∠C = 180°

⇒ 65° + 42° + (x-6)° =  180°

⇒ 107° + (x-6)° = 180°

⇒ (x-6)° = 180° - 107°

⇒ (x-6)° = 73°

⇒ x = 73° + 6°

⇒ x = 79°

Hence, the value of x is 79°