Week 28 DCA Review1.) The circumference of the circular Frisbee

is 24 inches. Which expression can be used to find the diameter?

Name: _________________________________ Date: ________________ Period: ___________

12 D 24 C 2

24 B

24A

2.) A circle with center at point J is shown below. Which line segment is exactly the same length as radius JK?

K

L

M

NJ

A Segment LN

B Segment LM

C Segment JL

D Segment LK

d C

3.) Find the area of the triangle in square inches.

8 in

6 in5 in A 40 in2 B 20 in2

C 48 in2 D 24 in2

2

h bA

4.) Jenny has a triangular kite. The area of the kite is 54 square inches and the base of the kite is 9 inches. How tall is the kite?

2

h bA

A 486 ft B 243 ft C 6 ft D 12 ft

5.) The circumference of a circular pool is 90 feet. Which method can be used to find the diameter of the pool?

.by ncecircumfere heMultiply t D

.by divide

thenand 2by ncecircumfere theDivide C

.by ncecircumfere theDivide B

.by divide

then and 2by cecirumferen heMultiply tA

6.) The perimeter of an equilateral triangle is 30 inches. Which of the following could be used to find s, the length of one side of the equilateral triangle?

330s D 330s C

330s B 330sA

7.) John wants to put grass in a rectangular backyard. The backyard measures 18 feet in length and 14 feet wide. What is the area of the backyard in square feet? A=lw

d C

8.) A rectangle is shown with a triangle inside. Which procedure could be used to find the area of the shaded region?

A Find the area of the triangle and subtract the area of the rectangle.B Find the perimeter of the rectangle and add the perimeter of the triangle.C Find the area of the rectangle and subtract the area of the triangle.D Find the area of the rectangle and add the area of the triangle.

9.) The side lengths and perimeters of some regular polygons are shown below. Which geometric figure is represented by the information in the table below?

Side Length

(inches)

Perimeter

(inches)

2 8

3 12

4 16

5 20

A Triangle

B Square

C Pentagon

D Hexagon

10.) What is the difference between the area of a football field and a soccer field?

Soccer Field Football Field

80 yds5

0 y

ds

120 yds5

0 yd

sA=lw

11.) The table below shows the area of a rectangle where the length stays the same, but the width changes. Which expression can be used to find the area of a rectangle that has a length of 7 units and width of n units?

Length

(units)

Width

(units)

Area

(square units)

7 2 14

7 3 21

7 4 28

7 n ?

nAn

A

nAnA

14 D 7

C

7 B 7A

12.) Joe is painting his ceiling. The area of the ceiling is 72 square feet. If the width is 8 feet, what is the length?

A=lw

A=lw

A 9 ft B 8 ft C 576 ft D 648 ft

13.) A rectangular poster measures 16 inches wide by 12 inches tall. What is the perimeter of the poster? (HINT: Add up all the sides)

A 28 in B 58 in C 56 in D 116 in

14.) Amy ate 3 triangular shaped cookies last night. Each triangular cookie had a base of 6 inches and a height of 9 inches. What is the total area of the cookies Amy ate?

A 27 in2 B 162 in2 C 54 in2 D 81 in2

2

h bA

15.) The radius of a circle is 4 feet. What is the best estimate of the circumference of the circle?

A Between 10 & 15 B Between 15 & 20C Between 20 & 25 D Between 25 & 30

r 2Cor C d

16.) Find the circumference of the circle.

8 in

A 48 in

B 12 in

C 42 in

D 24 in

r 2C

or C

d

17.) Find the area of the irregular shape.

7m

9m

5m

2m A 49 m2 B 23 m2

C 32 m2 D 59 m2

18.) Which expression CANNOT be used to find the circumference? r 2Cor C d

10

cm )(5)2( D (10) C

2))(102( B (5)A

19.) A rectangular prism has dimensions of 9 m,

7 m, and 5 m. What is the volume of the prism?

V= l w h

A 305 m3 B 315 m3

C 21 m3 D 42 m3

20.) Below is a semicircle arch. Which is closest to the area of the semicircle arch?

16 ft

A 192 ft2 B 768 ft2 C 96 ft2 D 384 ft2

21.) A box has a volume of 48 cubic inches. If the width of the box is 3 inches and the height of the box is 2 inches, what is the length of the box?

A 4 in B 5 in C 6 in D 8 in

2 in

3 in? in

V= l w h

22.) A circle has a diameter of 13 inches. Which is the closest to the area of the circle?

2r A

h r A 2

2r A :circle a of Area

wl A :Rectangle of Area

13 in

A 26 in2 B 133 in2

C 41 in2 D 531 in2

23.) What is the volume of the cylinder?

4 in

8 in A 32 in3 B 128 in3

C 384 in3 D 72 in3

24.) A cube has a side length of 3 inches. What is the volume of the cube?

3 in

V= s3 or V= l w h

A 9 in3 B 27 in3

C 81 in3 D 72 in3

25.) The perimeter of a square is 24 m. What is the area of the square?

A 36 m2 B 12 m2 C 72 m2 D 42 m2

26.) Two congruent circles sit in a rectangle. Each circle has a diameter of 10 inches. What is the approximate area of the shaded region?

20 in

A 200 in2 B 170 in2

C 47 in2 D 78 in2

10

in

2r A

Week 28 DCA Review Answers

1. A

2. C

3. B

4. D

5. B

6. A

7. 252 ft2

8. C

9. B

10.2,000 yds2

11.B

12.A

13.C

14.D15.C16.D17.A18.A19.B20.C21.D22.B23.C24.B25.A26.C