7th Grade STAAR Homework: TEKS 7.5C and 7.9B

1. Abdul is 5 feet tall. Which equation can be used to determine h, Abdul’s height in centimeters if 1 inch is equal to 2.54 centimeters?

a. / h = 2.54(5)
b. /
c. / h = 2.54(5)(12)
d. /

2. A map of Sarasota Middle School uses a scale of in = 1 ft. If the library shown on the map is 22 inches long, what is the actual length of the library?

a. /
b. /
c. /
d. / 30 ft

3. Janelle drew KL in isosceles trapezoid FGHJ to create similar trapezoids FKLJ and KGHL.

Based on the information given, what are the values of y and w in centimeters?

a. / y = 11 cm and w = 15 cm
b. / y = 15 cm and w = 15 cm
c. / y = 11 cm and w = 27 cm
d. / y = 15 cm and w = 27 cm

4. What is the circumference of this circle? (Use 3.14 for ).

a. / 37.68 m
b. / 75.36 m
c. / 150.72 m
d. / 452.16 m

5. Pentagon ABCDE is similar to pentagon RSTUV. The perimeter of pentagon ABCDE is 36.8 centimeters.

What is the length of ST?

6. A round placemat has a radius of 7.3 cm. What is the approximate area of the top of the placemat? (Use 3.14 for π).

a. / 29.92cm2
b. / 45.84cm2
c. / 71.98cm2
d. / 167.33cm2

7. Mrs. Hussen has two similar recycling bins in her office. The dimensions of the smaller bin can be found by dilating the dimensions of the larger bin by a scale factor of 0.75.

What are the measurements of x and y on the smaller bin?

a. / x = 13.25 in and y = 9.25 in
b. / x = 10.5 in and y = 6.5 in
c. / x = 11.5 in and y = 7.5 in
d. / x = 10.5 in and y = 7.5 in

8. The figure below is a drawing of a warehouse floor. Use the ruler from your math chart to measure the sides to the nearest inch.

SCALE: 1 in: 16 ft

Find the perimeter of the actual warehouse floor in feet.

9.

Samantha is following a blueprint to build an addition to her house. The kitchen countertop will be 8.75 feet long. The scale of the blueprint is 1 centimeter 1.75 feet. What is the length of the countertop on the blueprint?

10. A welcome sign at a school is in front of a flagpole. How tall is the welcome sign?

11. A rectangle has a length of 7.5 inches and a width of 3 inches. This rectangle is dilated by a scale factor of 2.2 to create a new rectangle. Which figure represents the new rectangle?

a. /
b. /
c. /
d. /

12. The park modeled below consists of a rectangular area and two semicircular areas. The area of the rectangular part is 60,000 square yards.

Which choice is closest to the distance along the perimeter of this park?

a. / 628 yd
b. / 914 yd
c. / 1,856 yd
d. / 1,228 yd

13. The circular opening of a tunnel has a circumference of 36 meters. Which of the following equations can be used to find d, the diameter of the tunnel opening in meters?

a. /
b. /
c. /
d. /

7th Grade STAAR Homework: TEKS 7.5C and 7.9B

Answer Section

1. ANS: C PTS: 1 OBJ: Supporting STA: 7.4E

2. ANS: D PTS: 1 STA: 7.5 C

3. ANS: D PTS: 1 STA: 7.5C

4. ANS: B PTS: 1 STA: 7.9B

5. ANS: 15 cm

PTS: 1 STA: 7.5C

6. ANS: D PTS: 1 STA: 7.9B

7. ANS: D PTS: 1 STA: 7.5C

8. ANS: Answers may vary

PTS: 1 STA: 7.5C

9. ANS: 5 cm

PTS: 1 STA: 7.5C

10. ANS: 5 ft

PTS: 1 STA: 7.5C

11. ANS: A PTS: 1 STA: 7.5C

12. ANS: D PTS: 1 STA: 7.9B

13. ANS: D PTS: 1 STA: 7.9B