School Improvement in Maryland

Sample Item
Selected Response Item for Grade 6

Standard 3.0 Knowledge of Measurement

Topic C. Applications in Measurement

Indicator 1. Estimate and apply measurement formulas

Objective d. Determine missing dimension of a quadrilateral given the perimeter length

Assessment limit: Find length in a quadrilateral given the perimeter with whole number dimensions (0 – 200)

Look at square RSTU shown below.

geometric image

The perimeter of RSTU is 144 inches. What is the measure, in inches, of line segment st?

  1. 12 inches
  2. 36 inches
  3. 72 inches
  4. 288 inches

Correct Answer
B. 36 inches
Answer Annotation
  1. 12 inches square root of 144
  2. 36 inches (correct)
  3. 72 inches 144 / 2
  4. 288 inches 144 x 2
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