ALEKS Geometry and Measurement

Question 1

What is the area of a rectangle with length 12 cm and width 7 cm?

Accepted Answer

84 cm²

Answer

Area = length × width = 12 × 7 = 84 cm².

Question 2

What is the circumference of a circle with radius 5? (Use π ≈ 3.14)

Accepted Answer

31.4

Answer

Circumference = 2πr = 2 × 3.14 × 5 = 31.4.

Question 3

Two angles are supplementary. If one angle measures 65°, what is the other?

Accepted Answer

115°

Answer

Supplementary angles sum to 180°, so 180° - 65° = 115°.

Question 4

A right triangle has legs of 6 and 8. What is the length of the hypotenuse?

Accepted Answer

10

Answer

Using the Pythagorean theorem: √(6² + 8²) = √(36 + 64) = √100 = 10.

Question 5

What is the volume of a cube with side length 4 cm?

Accepted Answer

64 cm³

Answer

Volume = side³ = 4³ = 64 cm³.

ALEKS - Assessment and Learning in Knowledge Spaces Practice Test