Area and Polygons

area = base x height (A=bh)

• triangle formula

• altitude

• parallelogram formula

• decomposition

Irregular figures can be separated into triangles and other polygons in order to find area

• decomposition

• area

• parallelogram formula

• altitude

what is the height?

• 15

• 17

• 8

Which number is the height?

• 3

• 3.1

• 1.5

Which statement(s) are true about area? Select all that apply. (2 pts)

• area is the distance around a polygon

• area is the space inside a polygon

• area is found by adding up the lengths of the sides of a polygon

• area can only be found for rectangles and no other polygons

What is the area of the parallelogram? (2 pts)

• 16.32 cm²

• 16.32 cm

• 18.36 cm²

• 11.9 cm

Which statement(s) are true about the relationship between the triangle and the parallelogram? Select all that apply. (2 pts)

• the triangle is half the area of the parallelogram

• the parallelogram is half the area of the triangle

• the base and height of the triangle are also the base and height of the parallelogram

• the parallelogram is twice as much area as the triangle

What is the area of the triangle? (2 pts)

• 42.7 cm²

• 42.7 cm

• 43.4 cm²

• 43.4 cm

Which statement(s) are true about perimeter? Select all that apply. (2 pts)

• perimeter is the distance around a polygon

• perimeter is the space inside a polygon

• perimeter is found by adding up the lengths of the sides of a polygon

• perimeter is found by multiplying the base and the height

Which is a true statement about the relationship between the parallelogram and the rectangle? (1 pt)

• they have the same perimeter

• they have the same area

• they are they same exact polygon

• they both have an area of 10 square units