NeSA NeSA Geometry & Measurement 2 — Questions and Answers
Question 1: What is the circumference of a circle with a radius of 7 cm? (Use π ≈ 3.14)
- 21.98 cm
- 43.96 cm (Correct answer)
- 153.86 cm
- 49 cm
Correct answer: 43.96 cm
Circumference = 2πr = 2 × 3.14 × 7 = 43.96 cm.
Question 2: In a right triangle, the two shorter sides measure 3 cm and 4 cm. What is the hypotenuse?
- 5 cm (Correct answer)
- 6 cm
- 7 cm
- 8 cm
Correct answer: 5 cm
Using the Pythagorean theorem: 3² + 4² = 9 + 16 = 25, so the hypotenuse = √25 = 5 cm.
Question 3: What is the measure of each interior angle of a regular hexagon?
- 90°
- 108°
- 120° (Correct answer)
- 135°
Correct answer: 120°
Sum of interior angles of a hexagon = (6−2)×180° = 720°; each angle = 720°/6 = 120°.
Question 4: A cube has a side length of 4 cm. What is its surface area?
- 48 cm²
- 64 cm²
- 96 cm² (Correct answer)
- 128 cm²
Correct answer: 96 cm²
A cube has 6 faces; surface area = 6 × side² = 6 × 16 = 96 cm².
Question 5: What is the area of a circle with a diameter of 10 cm? (Use π ≈ 3.14)
- 31.4 cm²
- 62.8 cm²
- 78.5 cm² (Correct answer)
- 314 cm²
Correct answer: 78.5 cm²
Radius = 5 cm; area = πr² = 3.14 × 25 = 78.5 cm².
Question 6: Which pair of angles are supplementary?
- 45° and 45°
- 30° and 60°
- 110° and 70° (Correct answer)
- 80° and 20°
Correct answer: 110° and 70°
Supplementary angles sum to 180°; 110° + 70° = 180°.
NeSA NeSA Geometry & Measurement 2
What is the circumference of a circle with a radius of 7 cm? (Use π ≈ 3.14)