i-Ready Diagnostic Test Diagnostic Measurement, Data, and Geometry 2

Question 1

A rectangle has a length of 12 cm and a width of 7 cm. What is its perimeter?

Accepted Answer

38 cm

Answer

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?

Accepted Answer

3/7

Answer

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?

Accepted Answer

Cubic feet

Answer

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?

Accepted Answer

50°

Answer

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?

Accepted Answer

5

Answer

The mode is the value that appears most often; 5 appears three times.

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