Year 2 Lesson 20 Homework - Page 1

Use the Cartesian Grid sheet to work these problems:

1. Graph this triangle on grid #1:
(+2,-7)
(+4,-1)
(+5,-7)
Triangle area = __________
What quadrant is this triangle in? ______
2. Graph this rectangle on grid #1:
(-6,+5)
(-3,+5)
(-3,+1)
(-6,+1)
What is the area of this rectangle? __________
What quadrant is this rectangle in? _____

3. Graph this triangle on grid #2:
(-6+3)
(-6,+6)
(-2,+4)
Base length = ______
Triangle area = ___________
What quadrant is this triangle in? ____

4. Graph this quadrilateral on grid #2:
(-6,+2)
(+2,+2)
(+7,-4)
(-6,-4)
Hint: Draw a line that cuts this quadrilateral
into a rectangle and a triangle.
Then find the two areas and add.
Total quadrilateral area = __________
5. Graph this triangle on grid #3:
(-5,-3)
(-5,+5)
(+4,+3)
Base length = ________
Height = _______
Triangle area = __________
6. Graph this rectangle on grid #3:
(+1,+7)
(+7,+7)
(+7,+5)
(+1,+5)
What is the area of this rectangle? __________
What quadrant is this rectangle in? _____

7. Graph this triangle on grid #4:
(+4,+6)
(+7,+6)
(+5,-3)
Base length = ______
Triangle area = ___________
8. Graph this trapezoid on grid #4:
(-5,+5)
(+2,+7)
(+2,-7)
(-5,-3)
    Hint: Draw a line that cuts this figure
into a rectangle and two triangles.
Then find the 3 areas and add.
Triangle #1 area = _______
Triangle #2 area = _______
Rectangle area = _______
Total trapezoid area = __________