Changing Dimensions Area and Perimeter

The distance around an object is called the 

• area
• perimeter
• volume
• circumference

The space inside an object is called it's

• area
• perimeter
• volume
• circumference

If a rectangle is drawn and another rectangle is drawn so that the sides are twice as big as the first rectangle, what happens to the area?

• doubles
• triples
• quadruples
• not enough information

What happens to the perimeter of a square if the sides are halved?

• doubles
• halved
• quadrupled
• forthed

Describe the effect of change on the area of the rectangle if the base and height are both multiplied by 1/2.

• The area is multiplied by 1/2
• The area is multiplied by 1/4
• The area is multiplied by 2
• The area is green

If the ratio of the sides of two rectangles is 3:4, what is the ratio of their perimeters ?

• 3:4
• 9:16
• 6:8
• 9:8

If the ratio of the radii of two circles is 3:4, what is the ratio of their areas ?

• 3:4  
• 6:8
• 9:16
• 27:64

Suppose the dimensions of a triangle with a perimeter of 18 units are doubled. Find the perimeter of the new triangle.

• 18
• 36
• 72
• 288

The perimeter of a square is 20 ft. How long is a side of a second square if it’s perimeter is three times the first square?

• 5 ft
• 10 ft
• 15 ft
• 60 ft

If a rectangle has an area of 48 cm², what would be the area of   a similar rectangle if the dimensions are doubled?

• 96 cm²
• 192 cm²
• 216 cm²
• 2304 cm²