# MAFS.912.G-GMD.1.3

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Congruence, Similarity, Right Triangles & Trig - 46%

## MAFS.912.G-

Circles, Geometric Measurement & Geometric Properties with Equations - 38%

## MAFS.912.G-

Modeling with Geometry - 16%

## What You Need To Know...

MAFS.912.G-GMD.1.3 - Use volume formulas for cylinders, pyramids, cones, and spheres to solve problems.

1. The benchmark will be assessed using Equation Response, Multiple Choice Response, Multi-select Response and Open Response.

2. Items may require students to necessary formulas.

3. Items may require students to use find a dimension or to find the volume when one or more dimensions are changed or the volume is changed.

4. Items may require include composite figures but will not include oblique figures..

## Example Four

Kendra has a compost box that has the shape of a cube.  She wants to increase the size of the box by extending every edge of the box by half of its original length.  After the box is increased in size, which of the following statements is true?

1. The volume of the new compost box is exactly 112.5% of the volume of the original box.
2. The volume of the new compost box is exactly 150% of the volume of the original box.
3. The volume of the new compost box is exactly 337.5% of the volume of the original box.
4. The volume of the new compost box is exactly 450% of the volume of the original box.

## Example Five

A city is planning to replace one of its water storage tanks with a larger one.  The city's old tank is a right circular cylinder with a radius of 12 feet and a volume of 10,000 cubic feet.  The new tank is a right circular cylinder with a radius of 15 feet and the same height as the old tank.  What is the maximum number of cubic feet of water the new storage tank will hold?

Cones
Pyramids
Spheres
Cylinders

## Reference Sheet

Select sample problems taken from FLDVIPN teacher materials

Violet Esopakis - Palm Beach Co.
Stephanie Fitzwater - Seminole Co.
Angela Kerins - Orange Co.
Lisa Lasseter - St. Johns Co.
Jeremy Lowery - Escambia Co.
Jodi Van Wagoner - Brevard Co.

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Jeremy Lowery - Escambia Co.

Sheila Montgomery - Escambia Co.

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