Free · Printable · TEKS 3.7B · Measurement
TEKS 3.7B Worksheets — Grade 3 Determine the perimeter of a polygon or
200+ Texas-aligned practice questions on this exact Grade 3 standard. Print at home or practice online with a built-in AI tutor. No sign-up, no paywall.
What TEKS 3.7B says: Determine the perimeter of a polygon or a missing length when given perimeter and remaining side lengths in problems.
This page has 200+ practice questions tagged specifically to TEKS 3.7B. Below: a sample of 8 with answers and explanations so you can preview the worksheet before printing. Every question goes through an AI quality gate (gpt-4o for content review, Claude Sonnet 4.5 for math verification) before publishing.
Cognitive demand: medium. Typical question shape: Polygon with side lengths shown; find perimeter, OR perimeter given and one side missing.
Gabriela is helping her family measure a rectangular garden in their backyard in Houston, Texas. The garden is 8 feet wide and 10 feet long. What is the perimeter of the garden?
- 36 feet ✓
- 28 feet
- 18 feet
- 20 feet
Why: To find the perimeter of a rectangle, you can use the formula: perimeter = 2 * (length + width). In this case, the length is 10 feet and the width is 8 feet. So, the perimeter is 2 * (10 + 8) = 2 * 18 = 36 feet. Therefore, the correct answer is 36 feet.
Nisha is helping her mom plant a garden in their yard in Tyler, Texas. They want to make a rectangular flower bed that is 8 feet long and 5 feet wide. What is the perimeter of the flower bed?
- 26 feet ✓
- 40 feet
- 30 feet
- 20 feet
Why: To find the perimeter of a rectangle, you add the lengths of all four sides. The formula for the perimeter (P) is P = 2 * (length + width). Here, the length is 8 feet and the width is 5 feet. So, P = 2 * (8 + 5) = 2 * 13 = 26 feet. Therefore, the correct answer is 26 feet.
Paola is helping her dad plant flowers in their backyard in Waco, Texas. They are creating a rectangular flower bed that is 4 feet long and 3 feet wide. What is the perimeter of the flower bed?
- 14 feet ✓
- 12 feet
- 7 feet
- 20 feet
Why: To find the perimeter of a rectangle, you add together the lengths of all four sides. The formula for perimeter is P = 2 * (length + width). Here, the length is 4 feet and the width is 3 feet. So, P = 2 * (4 + 3) = 2 * 7 = 14 feet. Therefore, the correct answer is 14 feet.
Sanaa is making a rectangular garden in her backyard. The length of the garden is 6 feet and the width is 4 feet. What is the perimeter of Sanaa's garden?
- 20 feet ✓
- 24 feet
- 22 feet
- 18 feet
Why: To find the perimeter of a rectangle, you can add the lengths of all four sides. The formula for perimeter is P = 2 × (length + width). In this case, P = 2 × (6 + 4) = 2 × 10 = 20 feet. Therefore, the correct answer is 20 feet.
Evelyn is helping her family build a small fence around their garden in Big Bend National Park. The garden is shaped like a rectangle. One side of the garden is 6 feet long, and the other side is 4 feet long. What is the perimeter of the garden?
- 20 feet ✓
- 24 feet
- 10 feet
- 12 feet
Why: To find the perimeter of a rectangle, you can add the lengths of all four sides. The formula for the perimeter (P) of a rectangle is P = 2(length + width). In this case, the length is 6 feet and the width is 4 feet. So, P = 2(6 + 4) = 2 * 10 = 20 feet. Therefore, the perimeter of the garden is 20 feet.
Ximena is measuring the perimeter of a rectangular garden in her backyard in Austin, Texas. The garden is 4 feet long and 3 feet wide. What is the total perimeter of Ximena's garden?
- 14 feet ✓
- 12 feet
- 15 feet
- 10 feet
Why: To find the perimeter of a rectangle, you add the lengths of all four sides. The formula is Perimeter = 2 * (length + width). In this case, Ximena's garden has a length of 4 feet and a width of 3 feet. So, we calculate it as follows: Perimeter = 2 * (4 + 3) = 2 * 7 = 14 feet. Therefore, the total perimeter of Ximena's garden is 14 feet.
Sebastian is hosting a BBQ in Texas and is preparing to serve his guests. He plans to serve ribs, and he needs 30 ribs in total. He has already cooked 18 ribs. How many more ribs does Sebastian need to cook to have enough for his BBQ?
- 12 ✓
- 10
- 18
- 30
Why: To find out how many more ribs Sebastian needs to cook, subtract the number of ribs he has already cooked from the total number of ribs he needs. The equation is 30 - 18 = 12. Therefore, Sebastian needs to cook 12 more ribs for his BBQ.
Santiago is helping his grandmother prepare for a family barbecue in McAllen, Texas. They have already put out 12 feet of tables. If they need a total perimeter of 40 feet for the tables, how many more feet do they need to set up?
- 28 ✓
- 12
- 40
- 24
Why: To find out how many more feet of tables Santiago needs to set up, we first need to determine the difference between the total perimeter required (40 feet) and the length of tables already set up (12 feet). We calculate this as 40 - 12, which equals 28 feet. Therefore, Santiago needs to set up 28 more feet of tables.
Common questions about TEKS 3.7B
What is TEKS 3.7B?
TEKS 3.7B is a Grade 3 Measurement standard from the Texas Essential Knowledge and Skills. The standard says: Determine the perimeter of a polygon or a missing length when given perimeter and remaining side lengths in problems.
How many TEKS 3.7B practice questions are available?
200+ practice questions tagged to TEKS 3.7B. All free to print or practice online. We pull a fresh set each time you print a worksheet so your kid doesn't see the same questions twice.
What kind of questions test TEKS 3.7B on the STAAR?
Polygon with side lengths shown; find perimeter, OR perimeter given and one side missing. TEKS 3.7B is a medium-cognitive-demand standard — 1-2 step questions are typical.
Where do these questions come from?
Generated by our AI pipeline, then independently quality-gated by two cross-vendor models (gpt-4o for content review, Claude Sonnet 4.5 for math verification) before publishing. Every question is tagged to TEKS 3.7B and modeled on real STAAR item shapes. No typos, no wrong answer keys, no broken explanations.