Act Math Area and Perimeter

A rectangle with a perimeter of 30 centimeters is twice as long as it is wide. What is the area of the rectangle in square centimeters?

• 15

• 25

• 50

• 100

• 125

Tags

CCSS.3.MD.C.7B

CCSS.4.MD.A.3

• 8

• 16

• 24

• 32

Tags

CCSS.7.G.B.4

The total perimeter of the square garden bed is 48 feet. What is the total area of the bed in square feet?

• 12

• 96

• 144

• 192

Tags

CCSS.3.MD.C.7B

CCSS.4.MD.A.3

A triangle has side lengths of 6 inches and 9 inches. If the third side is an integer, what is the least possible perimeter, in inches, of the triangle?

• 4

• 15

• 18

• 19

• 29

Find the perimeter.

Hint: you have to find the two missing sides first!

• 25cm

• 35cm

• 50cm

• 100cm

Answer explanation

Start by finding the missing sides.

longer side = 15 m - 4 m.

shorter side = 10 m - 6 m.

then, add ALL sides for perimeter.

Tags

CCSS.3.MD.D.8

What is the area of the shaded region?

• 4 cm²

• 16 cm²

• 8 cm²

• 12 cm²

Answer explanation

Area of total region - area of smaller region

Find the perimeter if            x = 15 ft and y = 10 ft.

• 50 ft

• 25 ft

• 60 ft

• 150 ft

Tags

CCSS.4.MD.A.3

Find the area if a = 13 in,    b = 9 in and c = 16 in.

• 38 in²

• 117 in²

• 468 in²

• 58.5 in²

Tags

CCSS.6.G.A.1

If the area of rectangle ABCD is 1 square unit, which of the following expressions represents the area of the shaded region?

Tags

CCSS.3.NF.A.1

CCSS.3.NF.A.2B

What is the area of a triangle whose base is 10 in and height is 5 in?

• 50 in²

• 30 in²

• 15 in²

• 25 in²

Tags

CCSS.6.G.A.1