book Maths Puzzle Numerical Ability

Need help again: A pair of verticle angles. Angle A is 3x+38. Angle B is 5x+20. Determine the measure of each angle.

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book Other Question

What is the distance between the points (2,5) and (-4,1)? If the sides of a square are decreased by 2 cm, the area is decreased by 36 cm^2. What were the dimensions of the original square?