Act Area, Perimeter, Circumference

Adjacent segments in the hexagon are perpendicular, and 4 segments are each 3 yards long, as marked. What is the perimeter of the hexagon, in yards?

• 12

• 18

• 24

• 27

• 30

In a certain triangle, the longest side is 1 foot longer than the second longest side, and the second longest side is 1 foot longer than the shortest side. If the perimeter is 21 feet, how many feet long is the shortest side?

• 6

• 7

• 8

• 9

• 10

Tags

CCSS.3.MD.D.8

• 36

• 48

• 72

• 96

• 14

Tags

CCSS.3.MD.C.7B

CCSS.4.MD.A.3

The rectangle pictured has lengths as marked in units. What is the area, in square units, of the shaded triangle?

• 16

• 20

• 25

• 32

• 40

Tags

CCSS.6.G.A.1

The figure shows a semicircle joined to a rectangle with distances given in units. What is the area, in square units, of this figure?

The distance around a circular path is 1,000 meters. Which of the following most nearly approximates the radius of the path, in meters? (Note: \(\pi=3.14\))

• 10

• 18

• 32

• 159

• 318

Tags

CCSS.7.G.B.4

Anna wants to completely cover the rectangular ceiling of her own room with soundproof tile so she can play her stereo as loudly as she wants. Her ceiling is 16 ft. long and 10 ft. wide. The tiles are 2 ft. by 2 ft. squares. How many tiles does Anna need to cover her ceiling with one layer of soundproof tiles?

• 20

• 26

• 40

• 52

• 80

Tags

CCSS.6.G.A.4

Tags

CCSS.HSA.APR.A.1

The perimeter of a parallelogram is 72 inches, and one side measures 12 inches. What are the lengths, in inches, of the other three sides?

• 12, 12, 36

• 12, 18, 18

• 12, 24, 24

• 12, 30, 30

• Cannot be determined

Tags

CCSS.3.MD.D.8

• 28

• 57

• 113

• 254

• 283

Tags

CCSS.7.G.B.4