# pre algebra 3

## Question 1 (5 points)

Find the coordinates of the vertices of each figure after a reflection over the given axis.

triangle
ABC with vertices
A(â€“8, 5),
B(â€“7, â€“6), and
C(3, 4);
x-axis

Question 1 options:
 AÂ´(â€“8, â€“5), BÂ´(â€“7, 6), CÂ´(3, â€“4) AÂ´(â€“8, â€“5), BÂ´(6, â€“7), CÂ´(â€“3, â€“4) AÂ´(5, â€“8), BÂ´(â€“6, â€“7), CÂ´(4, 3) AÂ´(8, 5), BÂ´(7, â€“6), CÂ´(â€“3, 4)

## Question 2 (5 points)

Draw an obtuse isosceles triangle.

Question 2 options:

## Question 3 (5 points)

Draw a right isosceles triangle.

Question 3 options:

## Question 4 (5 points)

A triangle has the vertices A(â€“7, 8), B(1, â€“7), and C(7, 6). After a dilation, the vertices of the image are A’(â€“28, 32), B’(4, â€“28), and C’(28, 24). What is the scale factor of the dilation?

Question 4 options:
 4 8 2

## Question 5 (5 points)

Determine if the two figures are similar by using transformations.

Question 5 options:
 The figures are similar because a reflection followed by a dilation will map figure ABCD onto figure MNPQ. The figures are similar because a rotation followed by a dilation will map figure ABCD onto figure MNPQ. The figures are similar because a translation followed by a dilation will map figure ABCD onto figure MNPQ. The figures are not similar. The ratios of the side lengths are not equal.

## Question 6 (5 points)

Find the coordinates of the vertices of the figure after a reflection over the given axis. Then graph the reflection image.

x-axis

Question 6 options:

## Question 7 (5 points)

Refer to the figure below.

If
m
, what is the measure of an angle that is complementary to
?

Question 7 options:
 180 75 90 15

## Question 8 (5 points)

Classify the polygon. Then determine whether it appears to be regular or not regular.

Question 8 options:
 heptagon; regular octagon; regular nonagon; not regular octagon; not regular

## Question 9 (5 points)

The measures of the angles of a triangle are shown below. Find the value of x.

79Â°, 70Â°, xÂ°

Question 9 options:
 149 41 31 180

## Question 10 (5 points)

Find the coordinates of the imageâ€™s vertices.

A triangle with vertices
L(â€“1, 5),
M(â€“1, 7), and
N(â€“8, 5) is rotated 270

Question 10 options:
 Lâ€™(â€“5, 1), Mâ€™(â€“7, 1), and Nâ€™(â€“5, 8) Lâ€™(1, 5), Mâ€™(1, 7), and Nâ€™(8, 5) Lâ€™(5, 1), Mâ€™(7, 1), and Nâ€™(5, 8) Lâ€™(5, â€“1), Mâ€™(7, â€“1), and Nâ€™(5, â€“8)

## Question 11 (5 points)

Copy parallelogram ABCD.

Rotate the parallelogram
Q.

Question 11 options:

## Question 12 (5 points)

Draw an obtuse scalene triangle.

Question 12 options:

## Question 13 (5 points)

Determine the scale factor for each dilation. Determine whether the dilation is an enlargement, reduction, or congruence transformation.

Question 13 options:
 2; enlargement 2; reduction ; enlargement ; reduction

## Question 14 (5 points)

Use the terms vertical angles, adjacent angles, complementary angles, or supplementary angles to describe angles 1 and 2 in as many ways as possible.

Question 14 options:

## Question 15 (5 points)

Find the missing measure in the triangle.

A = 94Â°, B = 54Â°, C = xÂ°

Question 15 options:
 32 180 328 148

## Question 16 (5 points)

Draw an acute equilateral triangle.

Question 16 options:

## Question 17 (5 points)

Classify the polygon. Then determine whether it appears to be regular or not regular.

Question 17 options:
 stargon; regular hexagon; not regular pentagon; not regular pentagon; regular

## Question 18 (5 points)

Use the terms vertical angles, adjacent angles, complementary angles, or supplementary angles to describe angles 1 and 2 in as many ways as possible.

Question 18 options:
 adjacent angles vertical angles adjacent angles; supplementary angles vertical angles; supplementary angles

## Question 19 (5 points)

Classify the polygon. Then determine whether it appears to be regular or not regular.

Question 19 options:
 hexagon; not regular heptagon; not regular hexagon; regular pentagon; regular

## Question 20 (5 points)

Find the value of x in the figure.

Question 20 options:
 90 85 5 95