Area and Perimeter of Parallelograms and Triangles

1
Area and Perimeter of Parallelograms and Triangles
Parallelograms are quadrilateral with two sets of
parallel lines. This would include the following
shapes
height
height
height
base
base
base
Rectangles Squares
Parallelograms
To find the area of these shapes you multiply
their base by their height. A b(h) The
height and base are always perpendicular to each
other.
height
90
base
2
What shape do you get when a parallelogram is cut
diagonally?
Half of a parallelogram is a triangle, so to find
the area of a triangle
A b(h)
A b(h)
height
height
base
base
3
Find the area of the following parallelograms and
triangles.
6
3ft
2ft
72 units²
64 ft²
30 ft²
12
8ft
15ft
6 in
10 in
15 in²
8 in
44 in²
5 in
11 in