Measuring in Units

Measure to the nearest half inch. The scissors are about ____ inches long.

• 3 in

• 4 in

• 3 1/2 in

• 4 1/2 in

Calculate the area of this triangle.

• 30 square units

• 15 square units

• 42 square units

• 21 square units

Which measurement do you not need in order to find the area of this triangle?

• 4 units

• 5 units

• 8 units

• You need all three measurements.

Calculate the area of this triangle.

• 20 units²

• 10 units²

• 40 units²

• This question is impossible to solve.

Calculate the surface area of this net.

• 48 cm²

• 48 cm³

• 60 cm²

• 60 cm³

FInd the volume of this rectangular prism.

• 26 units³

• 24 units³

• 24 units²

• 26 units²

Which expressions would you use to find the volume of this rectangular prism? Choose all that are correct.

• 4(6 + 2 1/2)

• 4 x 6 x 2 1/2

• 4 x 6 x 2.5

• 2 1/2 x 6 x 4

• 6 x 2.5 x 4

Which of the following are true about this cube? Choose all that are correct.

• The volume is 27 units³

• The surface area is 81 units²

• The surface area is 54 units²

• The volume is 81 units³

Which of the following are true? Choose all that are correct.

• Length, or distance, is one dimensional. So, units will be in, cm, ft, mi.

• Area is two-dimensional. So, units will be in², cm², ft², mi².

• Volume is three-dimensional. So, units will be in³, cm³, ft³, mi³.

• Surface area is always in square units (in², cm², ft², mi²), even when the surface is part of a three-dimensional figure.

The mass or weight of the watermelon is ....

• More than 1 kg

• Less than 1 kg

• 1 kg