Coordinate Geometry Perimeter and Area

What is the area of the rectangle?

Find the area of the triangle.

• 12 square units

• 8 square units

• 6 square units

• 4 square units

Find the area of the triangle.

• 11.5 square units

• 21 square units

• 28 square units

• 14 square units

Plot the following points: (1,1) (1,5) (6,5) (6,1)
What is the area?

• 25

• 9

• 16

• 20

The ordered pairs below represent three vertices of a rhombus.

(4, 9), (6, 7), (4,5)

Which ordered pair cold represent the fourth vertex of this rhombus?

• (7, 2)

• (9, 7)

• (2, 9)

• (2, 7)

Find the area of the tilted square.

One side of a rhombus has endpoints (3, -7) and (6, 6). What is the perimeter?

• 53.4

• 13.3

• 40

• 10

How can you prove that this quadrilateral is a trapezoid?

What is the area of this triangle?

• 14 units²

• 24 units²

• 48 units²

If you want to prove that Quadrilateral ABCD is a rectangle, what is the best piece of evidence to use?

• The lengths of AC and BD are the same, therefore AC and BD are congruent

• The slopes of AC and BD are the same, therefore AC and BD are congruent

• The slopes of AB and BD are the same, therefore AC is perpendicular to BD

• The slopes of AB and BD are opposite reciprocals, therefore AC is perpendicular to BD.