You can not find the area of a triangle

Length X Height divided by 2

Length X Width

Height X Width 

Height x Base divided by 4

Length x Width

1/3 (Length x width)

1/2 (Base x height)

48 square inches

64 square inches

88 square inches

76 square inches

6

3

9

5

3000 cm ²

164 cm ²

236 cm ²

328 cm ²

140 in.²

83 in.²

166 in. ²

100 in.²

161 square feet

1,700 square feet

75 square feet

186 square feet

Finding the amount a container can hold

Finding out how much wood is needed to build a fence in your back yard.

10.30cm²

130cm³

144cm²

130cm²

The measure of the amount of space inside of a solid figure

The sum of all the areas of all the shapes that cover the object