Question

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Answer 1

Step-by-step explanation:

in the triangle there are total 180°

=> Q = 180°-45° - 68°

Q = 67°

=> 3x + 6 = 67

3x = 61

x = 20.34

( I'm not sure its the same way you usually done it but here )

Answer 2

Answer:

$\sf \: 67°$

Step-by-step explanation:

We know the angle sum property :-

Sum of all the angles is 180°

(i.e.) ∠ P+∠Q+∠R = 180°

$\sf ∠ P+∠Q+∠R = 180°$

$\sf 45°+(3x+6)+68° = 180°$

$\sf \: 113 + 3x + 6 = 180$

$\sf \: 3x = 180° - 119°$

$\sf 3x = 61$

$\sf \: x = \frac{61}{3}$

$\sf ∠Q = (3x + 6) °= (61 + 6) ° = 67°$