I think john is 10 years old hope that helps.
The solution possible can be correct by dividing both sides by -5 ;Sooo x>-5.....
The answer would be 720 because you times all sides length times width times height
Answer:
°
Step-by-step explanation:
The sum of all the three angles of any triangle is 180°
Putting sum of all the angles given equals to 180°

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The value of the x is found on solving the given angles of the triangles.