Measurements and Proportions

In this pair of figures sides are proportional and angles are congruent.

• Similar Figures

• Ratio

• Unit Rate

• Proportion

• Unit Price

A statement that two ratios are equal and cross products are used to solve for missing amounts.

• Proportion

• Ratio

• Unit Rate

• Unit Price

To determine the best deal for a single item, always place the price in the numerator then divide the price by the number of items.

• Similar Figures

• Ratio

• Unit Rate

• Unit Price

• Proportion

Always write in simplest form and can be written many ways like 1:3 or 1 to 3 or one out of three.

• Indirect Measurement

• Ratio

• Unit Rate

• Similar Figures

• Proportion

Shadow lengths can be one of the measurements used in this type of proportion.

• Indirect Measurement

• Ratio

• Unit Rate

• Similar Figures

• Proportion

When setting this up always line up like amounts across the equal sign: beats/min = beats/min

• Unit Price

• Ratio

• Unit Rate

• Similar Figures

• Proportion

A comparison of two numbers by division with UNLIKE units.

• Similar Figures

• Ratio

• Unit Rate

• Indirect Measurement

• Similar Figures

Polygons that are the same shape but different size.

• Similar Figures

• Ratio

• Unit Rate

• Indirect Measurement

• Proportion

Must have 3 out of 4 measurements from the similar figures to set up and solve a proportion to find missing part (usually the X on the top left ratio in the proportion).

• Indirect Measurement

• Ratio

• Unit Rate

• Unit Price

• Similar Figures

A statement of congruence like ∆DEF ~ ∆GHI shows which sides and angles are corresponding in this pair of figures.

• Unit Price

• Ratio

• Unit Rate

• Similar Figures

• Proportion