Review your answers to Question 2. What happens to the coordinates of a shape when the shape reflects about the x-axis? What hap
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The slide and the ladder made a right angle triangle with the ground. The angle that the slide made with the ground is labeled as 
in the diagram below. We can use the trigonometry ratio to work out the size of the angle.
8.3 is the side opposite to the angle and 14.5 is the hypotenuse. We need to use the Sin ratio
° to the nearest degree
8.3 is the side opposite to the angle and 14.5 is the hypotenuse. We need to use the Sin ratio
On a number line, the length of a segment is the absolute value of the difference of the coordinates. So, if point has coordinate
and point
has coordinate
, we have
So, you have
So, yes, they are congruent.