Dimensions Geometry

 A trapezoid has base lengths 12 cm and 18cm and height 5 cm. Describe the effect of the change on the areawhen only the height is multiplied by 1/3

• The area is multiplied by 1/3
• The area is multiplied by 1/9
• The area is multiplied by 1/4
• The area is multiplied by 1/6

Tags

CCSS.7.G.A.1

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

Tags

CCSS.3.MD.D.8

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

Tags

CCSS.7.G.A.1

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

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

Tags

CCSS.7.G.A.1

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

• doubles
• halved
• quadrupled
• forthed

If the ratio of 2 round dinner plates is 2:5, what is the ratio of their areas?

• 2:5
• 1:5
• 4:10
• 4:25

Tags

CCSS.7.G.A.1

Suppose the dimensions of a pentagon with an area of 12 are tripled Find the area of the new pentagon in square inches.

• 108
• 36
• 72
• 144

Tags

CCSS.7.G.A.1

The length of one side of an equilateral triangle PQR is 8 inches. If triangle PQR is enlarged so that each side measures 20 inches, what is the effect on its area?

• The area is multiplied by 2.5
• The area is multiplied by 6.25
• The area is multiplied by 5
• The area is multiplied by 12.5

Tags

CCSS.7.G.A.1

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

Tags

CCSS.7.G.A.1