Unit 8 Test Review

Which equation could be used to find the value of x in the triangle.  * Hint, combine like terms

•  $12x+20=180$  

•  $12x=180$  

•  $12x-20=180$  

•  $8x-10=4x+10$  

Which of the following is a true statement about the angles in the figure below?

• $\angle3\ is\ 142\degree$

• $\angle1\ is\ 99\degree$

• $\angle2\ is\ 137\degree$

• $\angle4\ is\ 137\degree$

Which of the following describes two triangles that are similar to one another?

• 
• 
• 
• 

Which of the following could be the areas of the three squares shown?

• 
• 
• 
• 

Jack has a 35-foot ladder leaning against the side of his house, If the bottom is 21 feet away from the wall, how high does it touch the wall?

• 40.8 ft

• 28 ft

• 37ft

• 25ft

Find the side length of AB

• 8.6

• 4.9

• 9

• 4

Which of the following could not be the side lengths of a right triangle?

• 7.5, 10 and 12.5

• 85, 13, and 84

• 37, 35, and 12

• 24, 22, and 40

Paul is building a bridge out of popsicle sticks for school. He wants to make a right triangle out of sticks that measure 8cm, 10cm, and 18 cm. Can he make a right triangle out of these lengths?

• Yes because 8 + 10 = 18

• Yes because

  $8^2+10^2=18^2$

• No because $8\left(2\right)+10\left(2\right)\ne18\left(2\right)$

• No because $8^2+10^2\ne18^2$

The squares come together to form a right triangle. The area and perimeter for two of the squares are shown. What is the side length of the third square?

• 12

• 11.4

• 225

• 15

Lines a and b are parallel cut by a transversal. Solve for X

• 11.5

• 13

• 14.5

• 18