Illustrative Math Grade 7 Unit 1 Review

Front

What is the scale of a drawing if the area of the drawing is 25 square inches and the actual area is 2,025 square feet?

Back

81

Front

If water costs $1.25 per bottle, what is the total cost for 10 bottles?

Back

$12.50

Front

In a scaled copy of a quadrilateral, if the distance from point P to R is 3 units, what is the distance from point Q to S if they correspond to the same points in the original quadrilateral?

Back

3

Front

What is the perimeter of a quadrilateral that is a scaled copy of another quadrilateral with a scale factor of 3, if the original perimeter is 62?

Back

186

Front

If Quadrilateral A has side lengths 6, 9, 9, and 12, what is the perimeter of Quadrilateral B, a scaled copy with its shortest side of length 2?

Back

12

Front

Define 'scale factor' in the context of geometric figures.

Back

The scale factor is the ratio of the lengths of corresponding sides of two similar geometric figures.

Front

What is the formula for calculating the area of a rectangle?

Back

Area = length × width.

Front

How do you find the perimeter of a polygon?

Back

Add the lengths of all the sides together.

Front

What is a 'scaled copy' in geometry?

Back

A scaled copy is a figure that is similar to another figure but is either larger or smaller by a certain scale factor.

Front

If a shape is enlarged by a scale factor of 2, how does the area change?

Back

The area increases by a factor of 2² = 4.