DCP 3 Review (8th Grade)

A triangle is graphed on a coordinate grid. Which transformation will result in a triangle that is NOT congruent to the original triangle?

• A. A rotation of 180° counterclockwise

• C. A translation 5 units down

• D. A reflection across the y-axis

Tags

CCSS.8.G.A.2

CCSS.HSG.CO.B.6

Which measurements could represent the side lengths in feet of a right triangle?

Select TWO correct answers.

• 16 ft, 30 ft, 34 ft

• 13 ft, 17 ft, 30 ft

• 4 ft, 4 ft, 32 ft

• 5 ft, 12 ft, 13 ft

• 15 ft, 15 ft, 15 ft

Tags

CCSS.8.G.B.8

Triangle PQR is graphed on the coordinate grid. Triangle PQR will be transformed using the rule (x, y) → (x, -y) to create triangle P'Q'R'. Which graph represents triangle P'Q'R'?

• F

• G

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

In each diagram, line g is parallel to line k, and line t intersects lines g and k. Based on the diagram, which statement about x is true?

• The value of x is 106, because the sum of the measures of the labeled angles in each diagram is 180 degrees.

• The value of x is 74, because the labeled angles in each diagram are congruent.

• The value of x is 90, because the labeled angles in each diagram are complementary and the sum of the measures of complementary angles is 90 degrees.

• The value of x is 180, because the labeled angles in each diagram are supplementary and the sum of the measures of supplementary angles is 180 degrees.

Tags

CCSS.7.G.B.5

The width of a rectangle is 6 feet, and the diagonal length of the rectangle is 15 feet. Which measurement is closest to the length of this rectangle in feet?

• 9 feet

• 13.7 feet

• 16.2 feet

• 21 feet

Tags

CCSS.8.G.B.8

Tags

CCSS.HSG.CO.A.2

Figure WXYZ and figure KLMN are similar figures. Which proportion must be true?

Tags

CCSS.HSG.SRT.A.2

Triangle ABC is shown on the coordinate grid. Triangle ABC will be dilated by a scale factor of r with the origin as the center of dilation to create triangle A'B'C'. Which ordered pair best represents the location of point B'?

Tags

CCSS.8.G.A.3

What is the shortest distance in miles from Aaron's house to the bookstore?

Mathematical Equivalence

ON

Tags

CCSS.8.G.B.8

Quadrilateral WXYZ was graphed on the coordinate grid. Quadrilateral WXYZ was rotated 180° counterclockwise about the origin to form quadrilateral W'X'Y'Z'. Which statement is true?

• The area of quadrilateral W'X'Y'Z' is not equal to the area of quadrilateral WXYZ.

• Quadrilateral W'X'Y'Z' is not congruent to quadrilateral WXYZ.

• The perimeter of quadrilateral W'X'Y'Z' is greater than the perimeter of quadrilateral WXYZ.

• The angle measures of quadrilateral W'X'Y'Z' are congruent to the corresponding angle measures of quadrilateral WXYZ.

Tags

CCSS.8.G.A.2

CCSS.HSG.CO.B.6