i-Ready Diagnostic Test Diagnostic Measurement, Data, and Geometry 3

Question 1

A circle has a diameter of 10 cm. What is its circumference? (Use π ≈ 3.14)

Accepted Answer

31.4 cm

Answer

62.8 cm

Answer

15.7 cm

Answer

78.5 cm

Question 2

The stem-and-leaf plot shows stems 1, 2, 3 with leaves 2 4 | 1 3 5 | 0 2. What is the median?

Accepted Answer

21

Answer

24

Answer

30

Answer

13

Question 3

A trapezoid has parallel sides of 8 m and 12 m and a height of 5 m. What is its area?

Accepted Answer

50 m²

Answer

60 m²

Answer

40 m²

Answer

100 m²

Question 4

Which transformation moves every point of a figure the same distance in the same direction?

Accepted Answer

Translation

Answer

Reflection

Answer

Rotation

Answer

Dilation

Question 5

A data set has a mean of 15 and 6 values. If five values sum to 83, what is the sixth value?

Accepted Answer

7

Answer

9

Answer

5

Answer

11

Question 6

A rectangular prism has length 5 ft, width 3 ft, and height 4 ft. What is its surface area?

Accepted Answer

94 sq ft

Answer

60 sq ft

Answer

120 sq ft

Answer

47 sq ft

Question 7

Two lines intersect forming four angles. One angle measures 65°. What is the measure of the angle directly across from it (vertical angle)?

Accepted Answer

65°

Answer

115°

Answer

25°

Answer

130°