7.5A & 7.5C Math TEKS

Front

What is the definition of similar figures?

Back

Two objects that are the same shape but not the same size are called similar figures.

Front

How do you convert a scale measurement to actual distance?

Back

To convert a scale measurement to actual distance, multiply the scale measurement by the scale factor.

Front

If a map scale is 1 inch:100 miles, how many miles does 2 inches represent?

Back

2 inches represents 200 miles.

Front

What is the formula to find the actual length of an object given its scale length and the scale ratio?

Back

Actual Length = Scale Length × Scale Ratio.

Front

In a scale model, if 1 inch represents 15 feet, how tall is a model of a building that is 45 feet tall?

Back

The model would be 3 inches tall.

Front

What is the scale factor if 4 cm on a map represents 20 km in reality?

Back

The scale factor is 1 cm:5 km.

Front

How do you find the height of a scale model if the actual height is known?

Back

To find the height of a scale model, divide the actual height by the scale factor.

Front

What is the actual distance if the distance on a map is 1 3/4 inches and the scale is 1 inch:100 miles?

Back

The actual distance is 175 miles.

Front

If a scale model is built with a scale of 2 inches:30 feet, what is the height in inches of a model that represents a 180-foot tall structure?

Back

The height of the scale model is 12 inches.

Front

What is the relationship between scale models and real objects?

Back

Scale models are proportional representations of real objects, maintaining the same shape but differing in size.