Math 8 Unit 9 Review Guide 3/26

Which of these could be the lengths of the sides of a right triangle?

• 36, 8, and 5

• 8, 6, and 10

• 3, 5, and 6

• 45, 7, and 2

The picture of the butterfly is an example of what type of transformation?

• Dilation

• Translation

• Reflection over the y-axis

• Reflection over the x-axis

A right triangle has legs of 13 and 18. What equation is correct in order to find the hypotenuse (or h)?​ ​ ​ (a)  

What is the new coordinate for the center of this circle if it is reflected over the x-axis?

• (-2 , 3)

• (2 , 2)

• (-2 , -3)

• (2 , -3)

If a rectangular field is 5 meters by 12 meters and you decided to walk the diagonal of the field, how long would you walk?

• 13 meters

• 169 meters

• 119 meters

• 14 meters

If triangle ABC is translated up 4 units and to the left 3 units, what would be the new coordinates for point A?

• (-2, 1)

• (0, -1)

• (-1, 1)

• (2, 1)

If point A is reflected over the y-axis what would be the new coordinate?

• (-2, 3)

• (2, -3)

• ( -2, -3)

• (2, 3)

What is the length of a garden hose that is stretched diagonally across a rectangular yard that measures 25 m long and 38 m wide? Round to the nearest meter.

• 40 m

• 32 m

• 44 m

• 45 m

What is the length of y?

• 12

• 11

• 144

• -12

This shape is dilated by a scale factor of 2. What are the new coordinates of A and B?

• A'=(0, 10)

  B'=(-5,2)

• A'=(0, 10)

  B'=(-10, 0)

• A'=(10, 0)

  B'= (2,-5)

• A'=(0, 5/2)

  B'=(-5/2, 1)