Sheet # 76 Critical Thinking

Name: _____________________ Date_____________

1) The radius of a baseball is 3.8 cm. At a factory, each baseball is put in a box. What are the dimensions of the box? What is the volume of the box?

2) The radius of a baseball is 3.8 cm. Baseballs are sold by threes in cylindrical cans. What are the dimensions of the cylindrical can? What is the volume of the can?

**Answers for sheet # 76
**

1) The box is a cube with dimensions 7.6 cm x 7.6 cm x 7.6 cm.

7.6 cm is the diameter of the baseball.

Volume = 7.6 x 7.6 x 7.6 cubic cm. = 439 cubic cm

2) The base of the cylindrical can is circular with diameter = 7.6 cm.

Height of the can = 3 ( number of the balls) x diameter of the baseball

3 x 7.6 cm = 22.8 cm

Volume of the can = area of the base x height

3.14 x 3.8 x 3.8 x 22.8 = 1033.78 cubic cm