7.5 _Mrs. J_3

Front

What is a scale drawing?

Back

A scale drawing is a representation of an object or space that maintains the proportions of the original, using a specific ratio to convert measurements.

Front

If the scale is 1 inch : 2 feet, how do you find the actual length from the drawing?

Back

Multiply the length in inches by 2 to convert to feet.

Front

What is the actual length of an air hockey table that is 5 inches in a scale drawing with a scale of 1 inch : 2 feet?

Back

10 feet.

Front

What does a map scale of 1 cm = 5 km mean?

Back

It means that every 1 cm on the map represents 5 km in reality.

Front

If two cities are 3 cm apart on a map with a scale of 1 cm = 5 km, what is the actual distance?

Back

15 km.

Front

What does it mean for triangles to be similar?

Back

Similar triangles have the same shape but may differ in size; their corresponding angles are equal and their sides are in proportion.

Front

If two similar triangles have sides in the ratio of 2:3, how do you find the length of a side in one triangle if you know the corresponding side in the other?

Back

Use the ratio to set up a proportion and solve for the unknown side.

Front

What is the formula to solve for a variable in an equation?

Back

Isolate the variable on one side of the equation using inverse operations.

Front

If f + 2 = 6, what is the value of f?

Back

f = 4.

Front

How do you find the height of an object using similar triangles?

Back

Set up a proportion using the corresponding sides of the triangles.