Unit 8: Let's Test!!!

Find the perimeter of triangle ABC with vertices A(2,0), B(3, -1) and C (-2,-5). Round your answer to the nearest hundredth

• 1.41

• 13.8

• 14.21

• 6.4

Find the perimeter of polygon ABC with vertices A(-3,2), B(2,2) and C (-1,-3). Round your answer to the nearest hundredth

• 16

• 16.22

• 14.21

• 15

Find the area of polygon ABCD with vertices A(3,5) B(6,5) C(4,-1) D(1,-1)

(hint: draw it out or place it on Desmos)

Find the area of polygon ABCD with vertices A(-1,1) B(2,1) C(2,-2) D(-1,-2)

(hint: draw it out or place it on Desmos)

A line segment has a midpoint of (2,4) and an endpoint of (1,1). Find the coordinates of the other endpoint.

• (3, 7)

• (7,3)

• (1.5, 2.5)

• 3.16

A line segment has a midpoint of (-1,-2) and an endpoint of (4,4). Find the coordinates of the other endpoint.

• (3, 7)

• (-6,-8)

• (1.5, 1)

• 7.81

Find the distance between (-5, -8) and (-1, -16). Round to the nearest tenth

• 8.9
• 9.8
• 10.3
• 11

Find the distance between (-5, -8) and (-1, -16). Write your answer as a radical.

• √8

• √8.94

• √80

• √18

Find the distance between the given points. Select the answer as a radical and decimal rounded to the nearest tenth. (Pick 2)

• 9.7
• 10.7
• 11.7
• √128

• √136

Mr. Douglass is proposing a 12th floor to add to North Atlanta High School. The new floor will be parallel to the hallway shown and pass through the points (-1,6) and (0, m). Whis is the value of m?