D128 Mathematics for Elementary Educators
Preassessment Questions and answers 2022/2023
completed 100%
What is the length of the missing leg in a right triangle with a hypotenuse of 25 in. and a
leg of 9 in.?
4√34 in.
A scalene Triangle has
no congruent sides
Find the distance between points (0, 4) and (15, 0) by applying the Pythagorean
theorem.
15.52
A circle has a diameter of 12.8 ft. What is the area of this circle?
128.61 ft.
A circle has a circumference of 12.65 cm. Assuming π = 3.14, what is the measure of
this circle's diameter?
4.03 cm
A directional sign can be best described as which type of polygon?
rectangle
A quadrilateral has four congruent sides and diagonals that are perpendicular.
Rhombus
Points P (−2, 1), R (−2, −5), and Q (−6, −5) create triangle PQR, which is then
translated 1 unit down and 3 units to the right. What is the new x-coordinate of R?
A23
What is the triangle rotated 90 degrees about the origin?
The triangle now sits in the upper left corner
Which shows a dilation of the figure below?
Enlargement by scale factor of one half
Triangle ABC is congruent with triangle DEF. Which of the following angles in DEF is
congruent to m< BCA in the first triangle?
< EFD
A square with vertices A(2, 6) B(4, 8) C(4, 6) and D(2, 4) is dilated by a scale factor of 3
with reference to the origin. Which of the following is the coordinate of B'?
(12,24)
Given ABCD ~ WXYZ, which of the following is true?
BC~ XY
Which of the following theorems proves that two figures are similar, but not congruent?
Angle Angle
Which transformation will map (2, 5) onto (-2, 5)
(-x, y)
Two triangles are drawn in the coordinate plane. The vertices of the first triangle are (5,
4), (−4, 6), (−8, 9). The vertices of the second triangle are (1, 6), (−8, 8), ( x, y). Find the
value of x and y that allow these two triangles to be congruent.
(−12, 11)
Preassessment Questions and answers 2022/2023
completed 100%
What is the length of the missing leg in a right triangle with a hypotenuse of 25 in. and a
leg of 9 in.?
4√34 in.
A scalene Triangle has
no congruent sides
Find the distance between points (0, 4) and (15, 0) by applying the Pythagorean
theorem.
15.52
A circle has a diameter of 12.8 ft. What is the area of this circle?
128.61 ft.
A circle has a circumference of 12.65 cm. Assuming π = 3.14, what is the measure of
this circle's diameter?
4.03 cm
A directional sign can be best described as which type of polygon?
rectangle
A quadrilateral has four congruent sides and diagonals that are perpendicular.
Rhombus
Points P (−2, 1), R (−2, −5), and Q (−6, −5) create triangle PQR, which is then
translated 1 unit down and 3 units to the right. What is the new x-coordinate of R?
A23
What is the triangle rotated 90 degrees about the origin?
The triangle now sits in the upper left corner
Which shows a dilation of the figure below?
Enlargement by scale factor of one half
Triangle ABC is congruent with triangle DEF. Which of the following angles in DEF is
congruent to m< BCA in the first triangle?
< EFD
A square with vertices A(2, 6) B(4, 8) C(4, 6) and D(2, 4) is dilated by a scale factor of 3
with reference to the origin. Which of the following is the coordinate of B'?
(12,24)
Given ABCD ~ WXYZ, which of the following is true?
BC~ XY
Which of the following theorems proves that two figures are similar, but not congruent?
Angle Angle
Which transformation will map (2, 5) onto (-2, 5)
(-x, y)
Two triangles are drawn in the coordinate plane. The vertices of the first triangle are (5,
4), (−4, 6), (−8, 9). The vertices of the second triangle are (1, 6), (−8, 8), ( x, y). Find the
value of x and y that allow these two triangles to be congruent.
(−12, 11)
