Back to Use shapes to describe objects — Problem 2 · Task Set 41

Exercises: Use Geometric Shapes to Describe Objects

Work through each section in order. When you choose a geometric model, say what shape
you picked and why. Use $\pi \approx 3.14159$ and round as each problem directs.

Grade 10·23 problems·~35 min·Common Core Math - HS Geometry·standard·hsg-mg-a-1

Work through problems with immediate feedback

Warm-Up: Review What You Know

These problems review shape vocabulary and measurement skills you already have.

Which of these is an example of someone using geometry to describe a real object?

A student memorizes that the volume of a cylinder is $V = \pi r^2 h$ so the formula can be recalled on a test.

A teacher draws a cylinder on the board and labels its radius and height so the class can see the parts of the figure.

A textbook lists cylinders, cones, and spheres together in a chapter on three-dimensional figures.

A forester treats a tree trunk as a cylinder, measures its girth and height, and estimates how much lumber it will yield.