Lesson 4: Surface Area of 3-D Objects

Connect

Math 10C Module 1 Lesson 4 Lesson Assessment

Complete the lesson quiz posted under the Assess tab or using the Quizzes link under the Activitites block. Also ensure your work in your binder (course folder) is complete.

Project Connection **NOT ASSIGNED**

Think about the place that is the focus of your project. What 3-D objects are found in your place? Are there prisms, cones, cylinders, or spheres? If your place is fairly empty of objects, think of the 3-D objects that could occupy your place.

Now go to the Unit 1 Project and complete the Lesson 4 portion of your project.

Going Beyond

This is an image of a tree and its numerous green leaves.

Did you know that taller trees generally have more leaves? The water in a tree needs to get from the roots to where photosynthesis happens, which is in the leaves and green parts. If you have a really tall tree, the plant has to force the water against gravity up to its leaves.

How is this possible? Consider the study of surface area. If a plant has large leaves, or numerous smaller leaves, then there is more surface area for evaporation to take place. In a plant, this is called transpiration. When transpiration occurs, the water leaving the plant is replaced by water coming up from the ground—and this water has dissolved nutrients in it.

For more information, initiate an Internet search using the keyword “transpiration” to see what else you can learn about a plant and the surface area of its leaves.