i-Ready Diagnostic Test Diagnostic Measurement, Data, and Geometry 2 — Questions and Answers
Question 1: A rectangle has a length of 12 cm and a width of 7 cm. What is its perimeter?
- 38 cm (Correct answer)
- 84 cm
- 19 cm
- 76 cm
Correct answer: 38 cm
Perimeter of a rectangle = 2 × (length + width) = 2 × (12 + 7) = 2 × 19 = 38 cm.
Question 2: A bar graph shows that 24 students chose soccer and 18 chose basketball. What fraction of students chose basketball?
- 3/7 (Correct answer)
- 3/4
- 2/3
- 1/3
Correct answer: 3/7
Total students = 24 + 18 = 42; basketball fraction = 18/42 = 3/7.
Question 3: Which unit is most appropriate for measuring the volume of a swimming pool?
- Cubic feet (Correct answer)
- Square inches
- Miles
- Ounces
Correct answer: Cubic feet
Volume of a large container like a pool is measured in cubic feet (or cubic meters).
Question 4: A triangle has angles measuring 45° and 85°. What is the measure of the third angle?
- 50° (Correct answer)
- 40°
- 60°
- 55°
Correct answer: 50°
The sum of angles in a triangle is 180°; 180 − 45 − 85 = 50°.
Question 5: A line plot shows data values: 3, 3, 4, 5, 5, 5, 6. What is the mode?
- 5 (Correct answer)
- 3
- 4
- 6
Correct answer: 5
The mode is the value that appears most often; 5 appears three times.
Question 6: A cube has a side length of 4 inches. What is its volume?
- 64 cubic inches (Correct answer)
- 48 cubic inches
- 16 cubic inches
- 96 cubic inches
Correct answer: 64 cubic inches
Volume of a cube = side³ = 4³ = 64 cubic inches.
Question 7: On a coordinate plane, point A is at (3, 5) and point B is at (3, 1). What is the distance between them?
- 4 units (Correct answer)
- 6 units
- 8 units
- 2 units
Correct answer: 4 units
Since x-coordinates are equal, distance = |5 − 1| = 4 units.
i-Ready Diagnostic Test Diagnostic Measurement, Data, and Geometry 2
A rectangle has a length of 12 cm and a width of 7 cm.
What is its perimeter?