Unit 8 Review

When the dimensions of a rectangle are doubled, the area of the new rectangle is _____ times the

area of the original rectangle?

• two times

• four times

• three times

• five times

When the dimensions of a rectangle are tripled, the area of the new rectangle,

is ____________ times the area of the original rectangle.

• nine

• three

• six

• two

When the dimensions of a rectangle are doubled, the perimeter of the new rectangle

is ________ times bigger.

• five

• four

• two

• ten

A rectangle has a perimeter of 12 inches. If you double the dimensions of the rectangle,

what is the perimeter of the new rectangle?

• 36 inches

• 12 inches

• 24 inches

• 100 inches

Which two quadrilaterals always have four sides that are the same length?

• trapezoid and

  square

• square and

  rectangle

• trapezoid and rhombus

• rhombus and

  square

The football field is being expanded so its new dimensions are two times the original dimensions.

The original dimensions of the football field are 10 meters by 20 meters. What is the perimeter

of the expanded football field?

• 200 square meters

• 300 square meters

• 400 square meters

• 800 square meters

A rectangular football field is being expanded so that its new dimensions are two times

its original dimensions. The original dimensions of the football field are 10 meters times by 20 meters.

What is the perimeter of the expanded football field.

• 60 meters

• 120 meters

• 180 meters

• 30 meters

How many sets of parallel lines does a trapezoid have?

• 1

• 2

• 3

• 4

What kind of triangle has no equal sides?

• right

• scalene

• obtuse

• isosceles

A square classroom is being expanded so its new dimensions are four times the original

dimensions. The original classroom had sides 10 feet in length. What is the area

of the new classroom?

• 100 square feet

• 20 square feet

• 1000 square feet

• 1600 square feet