School Improvement in Maryland
Sample Item Scoring Information Return

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

Selected Response (SR) Item

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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